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SQL Error ORA-00942 Table or View Does Not Exist in Oracle Database
 
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How to use Tab View (Data Dictionary) of Oracle Database to solve the SQL Error ORA-00942 Table or View Does Not Exist error in Oracle Database ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: http://bit.ly/ora-00942 Previous Tutorial ► ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ------------------------------------------------------------------------- ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page of Manish Sharma___ https://www.facebook.com/TheRebellionRider/ ___Facebook Official Page of RebellionRider.com___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 5403 Manish Sharma
CHECKING IF EXISTS IN SQL SERVER
 
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This video for the beginner of SQL server programmer who are not fully understand how to checking if data exists do the correct condition and if data not exists do other transaction
Views: 13394 Sourn Sarim
Oracle Database11g tutorials 14 : How to CREATE TABLE using sql developer and command prompt
 
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Oracle Database11g tutorials 14 How to Create table using command prompt and Create table using sql developer Blog Link http://bit.ly/1TkY4Oe Time Line 0:25 Introduction of Tables in Database 1:03 What is Create Table (Introduction of create table) 1:30 Syntax of Create Table 2:08 How to create table using Command Prompt 4:55 How to create table using SQL Developer Links for Oracle Database tutorials 4: database connectivity using SQL developer and command prompt http://youtu.be/wSqoXRlXDUU You can have indepth knowledge about SQL create table here http://www.rebellionrider.com/sql-create-table.html Tool used in this tutorial is command prompt. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com Today in this oracle database tutorial we will see How to CREATE A TABLE. if we have to define a table in layman language then we can say that Tables are just a collection of Rows and Columns but In RDBMS tables are database objects which help in organizing data into ROWS and COLUMNS. We can also say that SQL tables are kind of data structure which are used by database for efficient storage of data. To create a table in our database we use SQL CREATE TABLE command. SQL CREATE TABLE is a type of DATA DEFINITION LANGUAGE also known as DDL. To Create a table in your schema you will require CREATE TABLE system privilege. In our future videos we will see what are system and object privileges and how to grant them to a user. Today for this video we will be using Sample schema HR which already has all the necessary privileges. Ohk Let's see the syntax. CREATE TABLE table name ( column name1 Data-Type(size), column name2 Data-Type(size), ..... ); CREATE TABLE is an oracle reserved word or say an Oracle key word whereas There are 3 different ways of creating a table in Oracle database. Creating a table using Command Line Interface (CLI) in Oracle database For demonstrating how to create table in oracle database using CLI, I'll be using Command prompt. Thats how we create table using command prompt. you can check your table structure by DESCRIBE command for that just write DESC and your table name. Like this Another way of creating a table is by using Graphic user interface (GUI) in Oracle database To demonstrate how to create table using GUI we will use SQL developer. Lets open our SQL developer I am connected to HR schema if you do not know how to create a connection to database using SQL developer please watch my oracle database tutorial 4 that explains database connectivity using SQL developer and command prompt. Link for this video is in the description below. So lets create a table. Creating a table using SQL developer is very easy we do not have to fire any query here. Let's start First of all right click on your connection in which you want to create a table and choose schema browser. This will open a separate schema browser pane or you can expend your connection by clicking this + sign and then right click on table and choose New Table. However I prefer working with schema browser so let's skip to schema browser pane here from the first drop-down list you can choose connection name and in the second drop down list you can choose what database objects you want to work with we want to create a table thus I'll choose table and then click this arrow here and choose option for new table Ok we have created a table wizard first of all give a unique name to your table and add some column as well. For this, click the green plus button. Now we already have a column so give it some name. Also choose a datatype from the list and specify any size you can check this not null column if in case you want to make this a mandatory column you can also specify default value and constraint If you want to make this column a primary key you can click here In my future video i'll show you what are these constraints and different ways of applying them on a column in a table. for this video we will concentrate on create table only so when you are done with all your columns click ok Thats your table You can double click on your table here and can see its structure. Thats it
Views: 168801 Manish Sharma
ORACLE SQL AND PL/SQL INTERVIEW QUESTION : SUBQUERY WITH NULL / NOT IN / NOT EXISTS OR OUTER JOIN
 
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This video demonstrates the oracle sql interview question where one need to use either not in, not exists or an outer join to get the desired result. For example if one is asked to fetch records from department table where department_id is not present in employee table
Views: 1796 Kishan Mashru
Let's Learn SQL! Lesson 82 : EXIST and NOT EXIST Subqueries
 
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Explore SQL with Tom Coffing of Coffing Data Warehousing! In this lesson, learn about EXIST and NOT EXIST Subqueries!
HOW TO CHECKING IF TEMPORARY TABLE EXISTS IN TEMPORARY DATABASE IN SQL SERVER
 
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HOW TO CHECKING IF TEMPORARY TABLE EXISTS IN TEMPORARY DATABASE IN SQL SERVER HD Video
Views: 603 Sourn Sarim
Oracle SQL Tutorial 13 - How to Add Column Constraints (Attributes)
 
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So far, we have this table declaration: CREATE TABLE users( user_id NUMBER, username VARCHAR(50 CHAR) first_name VARCHAR2(50 CHAR), last_name VARCHAR2(50 CHAR) ) We can run this command see that it works. As we are learning though, we are going to want to be able to recreate our table with different settings and such, but if you try to run this command, it will complain that the table already exists. So we first need to delete this table before we start editing settings. When we get more experienced, we will learn about ways to edit the structure of a table that already exists. To fix this, we can get rid of the table using the DROP TABLE command: DROP TABLE users You can run this every time if you need to practice by adding a semicolon after it. This is how you can tell Oracle that you are putting in another command after it. This is known as a delimiter. When you run the script, it is going to run both commands. Now we can go through and reconsider our table structure. This is fine for starting out because we don't have any important data in our database, but once your database is in production you are not going to want to just drop tables. In the last video we discussed different constraints that you can apply to columns in a database table, but how do you actually apply these when you are creating a table? The first way you define constraints is to put them right after the column in your CREATE TABLE statement. CREATE TABLE users( username VARCHAR2(50 CHAR) NOT NULL ) When we define constraints this way, we usually say we are adding column attributes. If you have two constraints you want to add, you just put one after the other with spaces in between. There is no particular order that is required. CREATE TABLE users( username VARCHAR2(50 CHAR) NOT NULL UNIQUE ) In this situation we have already given the column the NOT NULL and UNIQUE attributes, so we should consider making this a primary key: CREATE TABLE users( username VARCHAR2(50 CHAR) PRIMARY KEY ) As you can see, adding column attributes is super easy. We can add a default like this: CREATE TABLE users( username VARCHAR2(50 CHAR) PRIMARY KEY, account_balance NUMBER DEFAULT 0 ) Note that now we need the comma after the first row. There are a few constraints we did not talk go through an example, specifically foreign keys and check constraints. We will be adding these constraints to our database in future videos. In the mean time, I have a thought for you… Many people prefer to name their column constraints. That way, we can refer to certain constraints by name. For example, we might have a primary key constraint that could be named users_pk. The way we are creating these constraints does not allow for this feature, so in the next video we are going to be discussing different ways to create constraints. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me on Patreon! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 17685 Caleb Curry
How to Resolve Oracle SQL Parent Key Not Found (ORA-02291)
 
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In this video, we’ll explain what the ORA-02291 “parent key not found” error is, see an example, and look at how to resolve it. This error usually happens when we try to insert data into a table. It looks like this: Error is: ORA-02291: integrity constraint (constraint_name) violated - parent key not found So what does this error mean? It means we’re trying to insert data into a child table, and there is no related record in the parent table. If a foreign key has been set up to enforce this relationship, there needs to be a parent to insert a child that refers to it. Watch the video to see an example of this error as well as how to resolve it. For more information on Oracle SQL, refer to the Database Star website here: https://www.databasestar.com/
Views: 1178 Database Star
Troubleshooting the FileMaker ODBC “Table Does Not Exist” Error
 
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This video shows how to solve the "Table not found" error which can occur if there is not a TO on the Relationship Graph for the table when connecting via ODBC. FmPro Migrator Platinum Edition - $99 https://sites.fastspring.com/fmpromigrator/product/fmpromigratorplat_month_sub_fs1
Views: 1129 David Simpson
IN VS EXISTS VS JOIN, performance
 
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This video demonstrates the performance effects of using an exists clause instead of an IN clause, also it shows how we can update a simple sub query having an IN clause with an EXISTS or JOIN statement. It also shows that joining would consider the null data, where as an IN clause would neglect null values. If you want more such videos of exciting and amazing 'difference between' concepts, check out the links below : union and union all : https://youtu.be/n9FqQOd8liY char and varchar2 : https://youtu.be/039qzwjWf4k replace and translate : https://youtu.be/HKYF77BGzOE procedure and function : https://youtu.be/q3LmOenL120 rank and dense_rank : https://youtu.be/WGSX998hZ9M delete and truncate : https://youtu.be/u76wMm2byXo %type and %rowtype : https://youtu.be/MlLUFeZ_3eM
Views: 10944 Kishan Mashru
How to Add Column To Existing SQL Server Table with Default Constrain - SQL Server Tutorial
 
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How to Add a Column with Values to Existing SQL Server Table - TSQL Tutorial / SQL Server Tutorial We often have to add a new column to existing Table/s. Let's consider we have dbo.Customer table and we are US based company and we never did business outside USA. so we never need Country Column to our existing Table for Address as we only operator in USA. Now company has decided to expand the business and might have the customers from other countries. What we want to do , we want to add column to existing table with default value. All the existing values should be also updated to default value when we add this new column. Moving forward if no Country Name provided, It should take USA otherwise value provided. blog post link for script http://sqlage.blogspot.com/2015/03/how-to-add-column-with-values-to.html
Views: 25200 TechBrothersIT
Oracle SQL Tutorial 15 - How to Add Primary Key Constraints
 
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The goal of this video is to take the CREATE TABLE statement we have and walk through the different ways to create primary keys. This and foreign keys are the most common constraints, so we need to make sure that you have this one down. Once we have a more complex database design with multiple tables, we will learn the proper way to create foreign keys. For now, I am going to keep all of our constraints at the column level, unnamed. The only exception is the primary key, because that is what we are focusing on in this video. The first way to create the primary key is at the column level, unnamed. The primary key is very important because it what we use to distinguish rows from one another. Every table you create is going to need a primary key, and I suggest putting a lot of effort into making sure your keys are set up correctly and organized. --Delete the table if needed: DROP TABLE users; CREATE TABLE users( user_id NUMBER PRIMARY KEY, username VARCHAR2(50 CHAR) NOT NULL UNIQUE ) The next way is at the column level, but named: --Delete the table: DROP TABLE users; CREATE TABLE users( user_id NUMBER CONSTRAINT users_pk PRIMARY KEY, username VARCHAR2(50 CHAR)NOT NULL UNIQUE ) The general naming convention here is the table name followed by an underscore, followed by pk for primary key. Finally, the third way, which is at the table level, is the way we are going to create our primary key: --Delete the table: DROP TABLE users; CREATE TABLE users( user_id NUMBER, username VARCHAR2(50 CHAR) NOT NULL UNIQUE, CONSTRAINT users_pk PRIMARY KEY (user_id) ) Now, once you've created these constraints, you can use Oracle SQL Developer to find these constraints. Open your databases in the connections tab and find the table in the Tables folder. Double click your table and travel to the Constraints tab. You can tell here that the UNIQUE constraint still exists in this table, but it has a pretty disgusting name. It kind of wants to make me puke. Referencing that constraint in the future with that wacky name would be a burden. Engrave these three options in your head so that you can use any of them whenever you need and can read other peoples' code. Thank you for sticking with the series thus far. In the next video, we will be…doing something. See you then! :) ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me on Patreon! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 12786 Caleb Curry
SQL Tutorial - 13: Inserting Data Into a Table From Another Table
 
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In this tutorial we'll learn to use the INSERT Query to copy data from one table into another.
Views: 234648 The Bad Tutorials
How to insert and retrive data on a table  using oracle SQL
 
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Error handling while inserting data into the table. Fix ERROR at line 1: ORA-00947: not enough values ERROR: ORA-01756: quoted string not properly terminated
Views: 693 Golam Sarwar
SQL tutorials 18: SQL Foreign Key Constraint
 
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SQL Tutorial 18: SQL foreign key constraint. Topic covered in this tutorial 1. Defining SQL foreign key using create table at column level 2. Defining SQL foreign key using create table at table level 1. Defining SQL foreign key using Alter Table statement Links Website article: http://www.rebellionrider.com/sql-foreign-key.htm Primary key tutorial: http://www.rebellionrider.com/sql-foreign-key.htm Create Table Tutorial: http://www.rebellionrider.com/sql-create-table.html Tool used in this tutorial is SQL Developer. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com Foreign key is an Input/output data constraint which is also known as referential integrity constraint. Foreign key represent a link or say a relationship between columns of tables. Similar to primary key constraint Foreign Key constraint is also of two types. Simple Foreign key constraint and Composite Foreign key constraint. Constraint which involves only one column in foreign key in child table and one column in reference key in parent table is called Simple Foreign Key. While the constraint which involves more than one column in foreign key in child table and more than one column in reference key in the parent table is called Composite Foreign Key.
Views: 98900 Manish Sharma
How to Create and Drop Table in SQL
 
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Follow this easy step by step easy tutorial to learn how to create and drop table in SQL Server via Query Editor. Don't forget to check out our site http://howtech.tv/ for more free how-to videos! http://youtube.com/ithowtovids - our feed http://www.facebook.com/howtechtv - join us on facebook https://plus.google.com/103440382717658277879 - our group in Google+ In this tutorial we will guide you on creating tables in SQL Server. As we know, the main components in databases are the tables, in which the data actually resides. Tables contain rows and columns, where columns act like the entity identifiers such as employee name, employee salary etc and rows contain the data values for those entities. So in this tutorial we will see how to create tables in SQL Server. Step 1 -- Navigating to the Desired Database Creating tables in SQL server is very easy. It can be done via commands which have to be written in the Query Editor. For that, first of all, let's move to the database where the table has to be created. Expand the Databases folders from top and further expand the required database inside which table has to be created. After that, right click on that Database and open up the Query Editor. Step 2 -- Creating Table In the Query Editor we will write the following queries: create table Inventory ( ID int, Product varchar(50), Quantity int, Price decimal (18,2) ); The query here means that we are interested to create a new table which would be called Inventory. It will have an ID column for the Product Ids and its Data type would be an Integer. It will have a column for Products containing the product names, so its data type would be Varchar. It will also contain a Quantity field with Integer set as its data type And last of all, a column for Price that will accept data as real numbers. Therefore we will declare its type as decimal and set its maximum length as 18 with a precision of 2 decimal places. After that is done, click on the Execute Button on top. A message will appear below the Query Editor that the query has been executed successfully. Step 3 -- Identifying the Table Now for verifying whether the table has been made, just click on the Tables icon and then on the Refresh Icon, located under the Object Explorer. With that done, our newly created Inventory table would appear over there. Click on the Inventory table and expand its columns. The fields would appear to be created exactly like we had mentioned in the query earlier. Step 4 -- Drop Table Now let's move on to how to drop tables in SQL. To delete a table and all of its contents, we use the DROP table command in SQL. Over here, let's drop the table we just made. For that, simply write: drop table Inventory With that done, let's execute the command. Now when we will Refresh the Object Explorer, we can see that the Inventory table has been deleted. And that was how to create table in SQL.
SQL Server 27 - How to Create FOREIGN KEY Constraints
 
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In the previous video we set up an entire table. The problem with this table is that the species column is just plain text. The problem with this is that there is a higher probability of incorrect data and if we have tons of animals in here there will be a lot of redundant information. The solution to this is to change this species to a foreign key to another table. Remember that when you create a foreign key it is a child to a parent. The thing you need to know is that the parent has to exist before the child so the child has something to reference. So let's create the parent table. CREATE TABLE Species( ID INT PRIMARY KEY IDENTITY, Species VARCHAR(50) NOT NULL UNIQUE, FriendlyName VARCHAR(50) NOT NULL //NOT UNIQUE because multiple rows could be same category (Ex: Bunny) ); Now, the friendly name will likely have redundant data, so maybe later we can add a table for animal categories or something, but let's not overwhelm ourselves quite yet. Maybe in a few videos. Now that we have created that table, we can recreate the table that references it. The first thing to know when creating a foreign key is that the data type must match. Because the ID column in the species table is of type INT, we should make our Species column in the Animals table also of type INT. Secondly, to make this a foreign key we add REFERENCES Species(ID) to the Species column. DROP TABLE IF EXISTS Animals; CREATE TABLE Animals( ID INT PRIMARY KEY IDENTITY, Name VARCHAR(50) NOT NULL, Species INT NOT NULL REFERENCES Species(ID), ContactEmail VARCHAR(50) NOT NULL UNIQUE ); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 3669 Caleb Curry
Java & MySQL - Check if a value already exists
 
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Easy tutorial on how to check if a value already exists in the database.
Views: 25491 Mozoran
Oracle SQL Tutorial 22 - Why Primary Keys Shouldn't Change
 
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In the last video I mentioned that with our database design it is important to make sure that nobody tries to update a user's username. What happens if they do? Nothing horrible, Oracle will just throw an error. That's not such a big deal, but if you are hoping to make some kind of application that allows someone to change their username, this is not the best set up. Why? If you look at the projects table, we have a foreign key that references the username. Let's assume for a moment that Oracle allows you to do anything with your data. That means that if a user updates their username, there will be projects created by users that don't exist. Or a user could change their name to the previous owner. To fix this problem, we would need something such as an ON UPDATE CASCADE command for our foreign key. That would mean that if the user updated their username, the columns that reference that username would also update to the new value. This exists in some database management systems, but this does not exist in Oracle at the time of this video. How do we get around this problem? I'm sure we could conjure up something to allow us to update the username, but the easiest solution is to reference the user_id instead of the username. That way, when the username is updated, nothing changes inside of the foreign key. As a general rule, primary keys should never change. Foreign keys CAN change, but they should not change because a primary key changed. So, if we did happen to use a username as a column, it would be frowned upon if the username had to change because the column it references changes. However, it would be acceptable to change the foreign key if we needed to point to a new entity in the users table. Even if a username is never intended to change, these complications bother a lot of people. You can mitigate these problems by only referencing surrogate keys in foreign keys. This has the downside though that when you retrieve the data, you are going to have to do more work to make the data readable. For example, we had a table that was called project_users. It is essentially a table that says what users are part of what projects. We could have the foreign keys reference the project's name and the user's username. Then when you could say SELECT * FROM project_users. The data would be completely readable without doing anything. If you switch to only referencing surrogate primary keys, you will have a bunch of random numbers that don't mean anything and will have to be joined with other tables…which is really super frustrating when later you have to join a thousand tables to read anything. Which side do you prefer? Pick a side. Choose wisely. I'll see you all in the next video ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ HELP ME! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 5093 Caleb Curry
Hierarchical Queries: Databases for Developers #16
 
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Often data contains a parent-child relationship between rows in the same table. For example, company org charts and family trees. You can use the power of SQL to traverse these hierarchical relationships. There are two ways to do this in Oracle Database: - Connect By - Recursive With Watch this video to learn about data trees and find out how these work! Further reading: Hierarchical queries in the docs: https://docs.oracle.com/en/database/oracle/oracle-database/18/sqlrf/Hierarchical-Queries.html#GUID-0118DF1D-B9A9-41EB-8556-C6E7D6A5A84E Recursive subquery factoring in 11.2: https://oracle-base.com/articles/11g/recursive-subquery-factoring-11gr2 Take the course! https://devgym.oracle.com/pls/apex/dg/class/databases-for-developers-next-level.html Need help with SQL? Ask us over on AskTOM: https://asktom.oracle.com Twitter: https://twitter.com/ChrisRSaxon Daily SQL Twitter tips: https://twitter.com/SQLDaily All Things SQL blog: https://blogs.oracle.com/sql/ ============================ The Magic of SQL with Chris Saxon Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 1622 The Magic of SQL
Oracle Database 12c Tutorial  2: How To Unlock HR schema in Oracle Database 12c
 
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Learn how to unlock HR user / Schema in Oracle Database 12c. Step by step procedure of unlocking the HR Schema in Oracle 12c By Manish Sharma a.k.a RebellionRider ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/how-to-unlock-hr-user-in-oracle-database-12c Previous Tutorial ► Tut 60: How To Install 12c On Windows 7: http://youtu.be/T-rCbe1MMG4 ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at [email protected] Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 79106 Manish Sharma
MSSQL - Sql server - insert into table if record doesn't exist
 
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More info http://howtodomssqlcsharpexcelaccess.blogspot.com/2018/06/mssql-sql-server-insert-into-table-if.html
Views: 50 Vis Dotnet
SSIS Tutorial Part 60-Perform Upsert  (Update/Insert  SCD1) by Lookup Transformation in SSIS Package
 
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SSIS Tutorial Scenario: Let's say we have to load a dimension table from text file. Our business Key is SSN. We need to insert new records depending upon values of SSN column, If any new then we need to insert this records. If SSN already existing in Table then we need to find out if any other column is changed from Source columns values. If that is true then we have to update those values. What we will learn in this video How to Read the data from Flat file in SSIS Package How to perform Lookup to Find out Existing or Non Existing Records in Destination Table From Source How to Insert new Records by using OLE DB Destination How to update existing Records by using OLE DB Command Transformation in SSIS Package Link to the blog post for this video with script if used http://sqlage.blogspot.com/2015/05/perform-upsert-updateinsert-scd1-by.html Check out our Full Step by Step SQL Server Integration Services(SSIS) Tutorial http://www.techbrothersit.com/2014/12/ssis-videos.html
Views: 31029 TechBrothersIT
Part 12   Can we join two tables without primary foreign key relation
 
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Link for all dot net and sql server video tutorial playlists http://www.youtube.com/user/kudvenkat/playlists Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2014/09/part-12-can-we-join-two-tables-without.html Can we join two tables without primary foreign key relation Yes, we can join two tables without primary foreign key relation as long as the column values involved in the join can be converted to one type. ID column in Departments table is not the primary Key and DepartmentId column in Employees table is not the foreign key. But we can still join these tables using ID column from Departments table and DepartmentId column from Employees table, as both the columns involved in the join have same data type i.e int. Select Employees.Name as EmployeeName, Departments.Name as DepartmentName from Employees join Departments on Departments.ID = Employees.DepartmentId The obious next question is, if primary foreign key relation is not mandatory for 2 tables to be joined then what is the use of these keys? Primary key enforces uniqueness of values over one or more columns. Since ID is not a primary key in Departments table, 2 or more departments may end up having same ID value, which makes it impossible to distinguish between them based on the ID column value. Foreign key enforces referential integrity. Without foreign key constraint on DepartmentId column in Employees table, it is possible to insert a row into Employees table with a value for DepartmentId column that does not exist in Departments table. The following insert statement, successfully inserts a new Employee into Employees table whose DepartmentId is 100. But we don't have a department with ID = 100 in Departments table. This means this employee row is an orphan row, and the referential integrity is lost as result Insert into Employees values (8, 'Mary', 'Female', 80000, 100) If we have had a foreign key constraint on DepartmentId column in Employees table, the following insert statement would have failed with the following error. Msg 547, Level 16, State 0, Line 1 The INSERT statement conflicted with the FOREIGN KEY constraint. The conflict occurred in database "Sample", table "dbo.Departments", column 'ID'.
Views: 108886 kudvenkat
Creating a database, table, and inserting - SQLite3 with Python 3 part 1
 
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Welcome to an SQLite mini-series! SQLite, as the name suggests, is a lite version of an SQL database. SQLite3 comes as a part of the Python 3 standard library. Databases offer, typically, a superior method of high-volume data input and output over a typical file such as a text file. SQLite is a "light" version that works based on SQL syntax. SQL is a programming language in itself, but is a very popular database language. Many websites use MySQL, for example. SQLite truly shines because it is extremely lightweight. Setting up an SQLite database is nearly instant, there is no server to set up, no users to define, and no permissions to concern yourself with. For this reason, it is often used as a developmental and protyping database, but it can and is used in production. The main issue with SQLite is that it winds up being much like any other flat-file, so high volume input/output, especially with simultaneous queries, can be problematic and slow. You may then ask, what really is the difference between a typical file and sqlite. First, SQLite will let you structure your data as a database, which can easily be queried, so you get that functionality both with adding new content and calling upon it later. Each table would likely need its own file if you were doing plain files, and SQLite is all in one. SQLite is also going to be buffering your data. A flat file will require a full load before you can start querying the full dataset, SQLite files don't work that way. Finally, edits do not require the entire file to be re-saved, it's just that part of the file. This improves performance significantly. Alright great, let's dive into some SQLite. https://pythonprogramming.net/sql-database-python-part-1-inserting-database/ Playlist: https://www.youtube.com/playlist?list=PLQVvvaa0QuDezJh0sC5CqXLKZTSKU1YNo https://pythonprogramming.net https://twitter.com/sentdex https://www.facebook.com/pythonprogramming.net/ https://plus.google.com/+sentdex
Views: 204949 sentdex
Oracle username and password and Account unlocking
 
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all education purpose videos
Views: 265058 Chandra Shekhar Reddy
SQL injection - Getting the table name  ,  column name  and database name from the database
 
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in this video I will tell you how can get the table name and column and database name from the unknown database. As database connection is written in the server language so we need to run some code before we get to that stage of getting the table name, column name and database from the website To run our sql injection we are going to use, UNION query Step – 1 – In the step one we will try to get the number of column, to do that I will type the user which exist in the database Step – 2 – After knowing the number of column, we will try to get the table name and column name from the database, to do that I will use union query, and I will give below value in the form. Step – 3 – After knowing the table name and database name, we will try to get the table name, in the userprivateinfo table, to do that again I will use union query, and I will give below value in the form. Step – 3 – After knowing the table name and database name and column name, we will run one example to do that again I will use union query, and I will give below value in the form. Note – Although I keep on using Tom, as starting value, for every step, but you can use any value, as it does not matter, weather that value exist in the database or not. For the full source code – click on this link
Views: 9112 Arcode code
SQL SERVER PART-12: Oracle Linked Database Server
 
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HOW TO CREATE LINKED SERVER AND HOW TO QUERY ORACLE DATABASE FROM SQL SERVER MANAGEMENT STUDIO. SQL server 2017 makes it easy to configure linked server. You can use open-query to get or manipulate data of linked server database. CONFIGURATION SUMMARY: PROVIDER : oracle provider for oledb. DATA SOURCE : It is usually a combination of oracle server IP: port number/t.n.s listener name. e.g. 192.168.1.10:5121/orcl OPEN QUERY : select * form openquery(linked_server_name, ' sql query statement ') Configure a linked server to enable the SQL Server Database Engine to execute commands against OLE DB data sources outside of the instance of SQL Server. Typically linked servers are configured to enable the Database Engine to execute a Transact-SQL statement that includes tables in another instance of SQL Server, or another database product such as Oracle. Many types OLE DB data sources can be configured as linked servers, including Microsoft Access and Excel. Linked servers offer the following advantages: • The ability to access data from outside of SQL Server. • The ability to issue distributed queries, updates, commands, and transactions on heterogeneous data sources across the enterprise. • The ability to address diverse data sources similarly. An oracle linked server require OLE DB provider. An OLE DB provider is a DLL that manages and interacts with a specific data source. If your oracle database is not in same server then you have to install The Oracle Data Access Components (ODAC) for Windows consists of Oracle client side drivers. An OLE DB data source identifies the specific database that can be accessed through OLE DB. Although data sources queried through linked server definitions are ordinarily databases, OLE DB providers exist for a variety of files and file formats. These include text files, spreadsheet data, and the results of full-text content searches. Typically, linked servers are used to handle distributed queries. When a client application executes a distributed query through a linked server, SQL Server parses the command and sends requests to OLE DB. The row set request may be in the form of executing a query against the provider or opening a base table from the provider.
Views: 467 G Entertainment
The SQL CREATE TABLE Statement
 
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The SQL CREATE TABLE Statement The CREATE TABLE statement is used to create a table in a database. Tables are organized into rows and columns; and each table must have a name. SQL CREATE TABLE Syntax CREATE TABLE IF NOT EXISTS `contacts` ( `id` int(11) NOT NULL, `first_name` varchar(255) NOT NULL, `last_name` varchar(255) NOT NULL, `email` varchar(255) NOT NULL, `addres` text NOT NULL, `phone_number` int(11) NOT NULL, `birth_day` date NOT NULL ) ENGINE=InnoDB DEFAULT CHARSET=latin1;
Views: 98 alnoor biz
Careers and Training courses for SQL | SQL Developers are one of the highest paid employees in India
 
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Get Recruitment Notifications of all private and govt jobs , Mock test details ,Previous year question papers only at Freshersworld.com – the No.1 jobsite for entry level candidates in India. (To register : http://freshersworld.com?src=Youtube ) – This video is all about “Careers and Training courses for SQL What actually it is SQL is a standard language for accessing and manipulating databases. What is SQL? • SQL stands for Structured Query Language • SQL lets you access and manipulate databases • SQL is an ANSI (American National Standards Institute) standard ________________________________________ What Can SQL do? • SQL can execute queries against a database • SQL can retrieve data from a database • SQL can insert records in a database • SQL can update records in a database • SQL can delete records from a database • SQL can create new databases • SQL can create new tables in a database • SQL can create stored procedures in a database • SQL can create views in a database • SQL can set permissions on tables, procedures, and views ________________________________________ Which companies are looking for this 1) DELL 2) J.P. Morgan 3) GOOGLE 4) NETCRACKER 5) and many more companies are looking for the same. Best way to learn this course There is a lot of material online and it is actually very difficult to separate the good from the bad. It is about dividing the task of "learning SQL" into a concrete set of actions followed by hand-picking of the material that suits your temper. 1. Database fundamentals: Spend some time on looking what a database is - understand how it works (what is a 'key'? what type of roles exist in a database? what is a table? etc.). 2. Relational databases: Relational databases are probably the most used database organization. It is fairly easy to comprehend so give it a couple of hours. 3. Data types: If you know nothing about data types - (If you cannot answer questions like what is a numeric(0,2)? or what is a string?) then you should definitely look into fundamentals about data types. Understanding the data types in SQL Server. 4. Joins methodology: Understanding how data-sets can be joined across tables and how you extract data. 5. Download SQL Server Express: Download the free version of MS SQL and create a database on your local computer. Salary after doing this course The average SQL Developer salary is $73,345 per year or $38 per hour. This is around 2.5 times more than the Median wage of the country. Entry level positions start at $51,000 while most experienced workers make up to $103,000. Related jobs Average salary Microsoft Server Developer $97,500 Developer Stored Procedures $70,000 Net Sql Developer $70,000 Lead Sql Developer $37,112 SQL Developer Salary(India) The average salary for a SQL Developer is Rs 372,127 per year. People in this job generally don't have more than 10 years' experience. Experience strongly influences pay for this job. Growth after getting job SQL (Structured Query Language) will be among the most desirable job skills in the years ahead. Surprisingly, it is also among the easiest to learn. Here's why: • All computerized businesses — from global banks to small town bakeries — need to have a database, almost all of which are managed using SQL.1 • SQL consistently ranks at — or very near — the top of the most in-demand IT skills.2 • SQL developers take home an average salary of $92,0003 and enjoy very bright career prospects. If this sounds awesome to you, then buckle up and start learning SQL basics! Freshersworld.com is the No.1 job portal for freshers jobs in India. Check Out website for more Jobs & Careers. http://www.freshersworld.com?src=Youtube Download our app today to manage recruitment when ever and where ever you want : Link :https://play.google.com/store/apps/details?id=com.freshersworld.jobs&hl=en ***Disclaimer: This is just a training video for candidates and recruiters. The name, logo and properties mentioned in the video are proprietary property of the respective organizations. The Preparation tips and tricks are an indicative generalized information. In no way Freshersworld.com, indulges into direct or indirect promotion of the respective Groups or organizations.
Writing re runnable sql server scripts   Part 66
 
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Text version of the video http://csharp-video-tutorials.blogspot.com/2013/06/writing-re-runnable-sql-server-scripts.html Slides http://csharp-video-tutorials.blogspot.com/2013/09/part-66-writing-re-runnable-sql-server.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists What is a re-runnable sql script? A re-runnable script is a script, that, when run more than, once will not throw errors. Let's understand writing re-runnable sql scripts with an example. To create a table tblEmployee in Sample database, we will write the following CREATE TABLE sql script. USE [Sample] Create table tblEmployee ( ID int identity primary key, Name nvarchar(100), Gender nvarchar(10), DateOfBirth DateTime ) When you run this script once, the table tblEmployee gets created without any errors. If you run the script again, you will get an error - There is already an object named 'tblEmployee' in the database. To make this script re-runnable 1. Check for the existence of the table 2. Create the table if it does not exist 3. Else print a message stating, the table already exists Use [Sample] If not exists (select * from information_schema.tables where table_name = 'tblEmployee') Begin Create table tblEmployee ( ID int identity primary key, Name nvarchar(100), Gender nvarchar(10), DateOfBirth DateTime ) Print 'Table tblEmployee successfully created' End Else Begin Print 'Table tblEmployee already exists' End The above script is re-runnable, and can be run any number of times. If the table is not already created, the script will create the table, else you will get a message stating - The table already exists. You will never get a sql script error. Sql server built-in function OBJECT_ID(), can also be used to check for the existence of the table IF OBJECT_ID('tblEmployee') IS NULL Begin -- Create Table Script Print 'Table tblEmployee created' End Else Begin Print 'Table tblEmployee already exists' End Depending on what we are trying to achieve, sometime we may need to drop (if the table already exists) and re-create it. The sql script below, does exactly the same thing. Use [Sample] IF OBJECT_ID('tblEmployee') IS NOT NULL Begin Drop Table tblEmployee End Create table tblEmployee ( ID int identity primary key, Name nvarchar(100), Gender nvarchar(10), DateOfBirth DateTime ) Let's look at another example. The following sql script adds column "EmailAddress" to table tblEmployee. This script is not re-runnable because, if the column exists we get a script error. Use [Sample] ALTER TABLE tblEmployee ADD EmailAddress nvarchar(50) To make this script re-runnable, check for the column existence Use [Sample] if not exists(Select * from INFORMATION_SCHEMA.COLUMNS where COLUMN_NAME='EmailAddress' and TABLE_NAME = 'tblEmployee' and TABLE_SCHEMA='dbo') Begin ALTER TABLE tblEmployee ADD EmailAddress nvarchar(50) End Else BEgin Print 'Column EmailAddress already exists' End Col_length() function can also be used to check for the existence of a column If col_length('tblEmployee','EmailAddress') is not null Begin Print 'Column already exists' End Else Begin Print 'Column does not exist' End
Views: 62644 kudvenkat
MySQL Temporary Tables
 
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https://medium.com/@jobs.yusuf/working-with-temporary-tables-in-mysql-566dbb1b6cd6 Hands-on on how to work with Temporary Tables. Temporary tables are transient tables which cease to exist once the session ends and this comes with a host of benefits. This video tells you: 1) What are Temporary Tables and why should you should use it. 2) How you can use Temporary Tables. 3) What are the potential threats if Temporary Tables are not used judicially.
Views: 360 Yusuf Hassan
Oracle Database 12c Tutorial 3:Connect HR/SYS user with SQL Developer in Oracle12c Using TNS Service
 
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Learn how to connect HR and Sys User of Oracle database 12c With SQL Developer using TNS service. Connect HR user which is in pluggable database to SQL Developer ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : Previous Tutorial ► Tut 61: How To Unlock HR schema in Oracle Database 12c http://youtu.be/F81gfUnznZY ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at [email protected] Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 50895 Manish Sharma
Merge: Databases for Developers #17
 
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Sometimes when adding rows to your database need update-if-exists, insert-if-not-exists logic. Aka an upsert. You could write this as separate update and insert statements. But there is an easier way: Merge! Watch this video for an overview of how merge works. Further reading: Merge documentation: https://docs.oracle.com/en/database/oracle/oracle-database/18/sqlrf/MERGE.html Delete rows not in the source using merge: https://technology.amis.nl/2006/10/14/have-merge-remove-records-from-target-that-are-not-in-the-source-oracle-10g/ Take the course: https://devgym.oracle.com/pls/apex/dg/class/databases-for-developers-next-level.html Need help with SQL? Ask us over on AskTOM: https://asktom.oracle.com Twitter: https://twitter.com/ChrisRSaxon Daily SQL Twitter tips: https://twitter.com/SQLDaily All Things SQL blog: https://blogs.oracle.com/sql/ ============================ The Magic of SQL with Chris Saxon Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 560 The Magic of SQL
How to find duplicate records in table sql
 
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There are various times when we need to find duplicate records in SQL Server. It is possible to find duplicates using DISTINCT, ROW NUMBER as well as the GROUP BY approach. ------------- May be you like this -------------- umbraco playlist : https://www.youtube.com/watch?v=zoefdruzmGE&list=PLv0T7WlllnSnYRedhwL8x-atkVxrSdd3m Angularjs playlist : https://www.youtube.com/watch?v=KXjD1RiAz1U&list=PLv0T7WlllnSkCfNftTNY8tWqCFWT0sIMd jquery playlist : https://www.youtube.com/watch?v=jVncasz_iyw&list=PLv0T7WlllnSkkNahiiWu_GMXq49X5ccfe F Wcf playlist : https://www.youtube.com/watch?v=NB4k0RC6vl0&list=PLv0T7WlllnSmcGHacEQnLgKvitcJEsSl6 c# playlist: https://www.youtube.com/watch?v=ZrP0NKbsr8s&list=PLv0T7WlllnSl9pZWMaMGsyoAmqZtW4gM0 Duplicate records can create problems sometimes when displaying reports or performing a Multiple Insert update. Finding duplicate records in a database needs further investigation. In some cases, duplicate records are positive, but it all depends on the data and the database design as well. For example, if a customer has ordered the same product twice on the same date with the the same shipping and billing address, then this may result in a duplicate record.
Views: 13159 Go Freelancer
SQL Server Interview Questions
 
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SQL Server Interview Questions - Different ways to find if a column exist in a table
Views: 80 Hima Bindu
Microsoft Excel, SQL & Internet Tips : Creating a Table in MySQL
 
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When creating a table in MySQL, make the table before opening a parenthesis to put in the fields that exist in the table. Make a new table in SQL with tips from a software developer in this free video on using MySQL. Expert: Dave Andrews Contact: www.daveandrews.org Bio: Dave Andrews is a software developer that holds a degree in computer science. Currently, he is employed by a government IT department. Filmmaker: Tim Brown
Views: 3510 eHow
How to Insert Into Table In SQL
 
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Follow this step by step easy tutorial to learn how to insert data into the tables in SQL Server Database via queries. Don't forget to check out our site http://howtech.tv/ for more free how-to videos! http://youtube.com/ithowtovids - our feed http://www.facebook.com/howtechtv - join us on facebook https://plus.google.com/103440382717658277879 - our group in Google+ The data inside the database is held by the tables. The data can be inserted in these tables either by the queries or even with a straightaway Graphical method. In this tutorial we will see both the methods. Step 1 -- Locating the Appropriate Database First of all, we need to locate and expand the database where that particular table is present. After that, expand the table's directory. Then we will insert the data in the Inventory table. If we move into the column section, it can be seen that there are four fields which have to be added, namely the ID, the Product Name, the Quantity and the Price. Step 2 -- Writing query for inserting record Now to insert in table, SQL query would be: Insert into Inventory (id,Product,quantity,price) values (1,'abc',12,255.32); Make sure that each value is separated by a comma. Once done, simply press F5 to execute the query. At the bottom, in the messages section, a message will appear about table rows that have been affected. Step 3 -- Another Method of Insertion We can also insert data in a table by simply giving the values straight away. For that just write the following query: Insert into Inventory values (1,'ab2',30,300.36); Make sure that the values in query in SQL inserted into table are in the same order as the order of columns in the table. Now let's execute this query and in the messages section, you can see the rows that have been affected. To insert in table, SQL queries are required to be written with much care as error can arise if we just miss to insert ellipsis even. Step 4 -- Viewing Table Data Now let's check the table to see if the data has been inserted correctly. For that let us fetch all records from the inventory table and for that, write: Select * from inventory When we execute the query, you can see all the records in the results section below, and they are exactly the same as we mentioned in the query in earlier steps. Step 5 --Alternate Method of inserting data To insert in table, SQL provides another way through which we don't have to write SQL insert into table queries. For that, just right click on the inventory table and choose the 'Edit top 200 rows' option. Step 6 -- Inserting data in Fields Over here, we can start inserting the data in the table straight away, without using the queries. All we have to do is type the records in the fields and press enter to save the changes made in each field. And that is how data is inserted in tables in SQL using insert keyword.
ASP Classic and SQL Server - Check if Email exist if not insert else show message
 
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Using ASP Classic to check if the email address exists in an sql server database. If the email does exist, show a message. If the email address does not exist, insert into the table. View article about this video and get the code I developed specifically for this lesson, from here. http://www.cffcs.com/Main.asp?Type=Entry&EID=84 Help support our work here on YouTube by purchasing a copy of Wayne Barron's first published book. Amazon.com http://amzn.to/2DHdOYP Amazon.co.uk http://amzn.to/2EmfYON What we use in our office. The microphone Audio-Technica AT2020USB Plus Condenser Microphone http://amzn.to/2HSbtMx UK Customers http://amzn.to/2DLHd3g Pop Filter - http://amzn.to/2kIDWt1 Anti Vibration - http://amzn.to/2kIpnWp Keyboards with a sleek design, ease of use, and easy to type on. Kensington Slim Type Wired Keyboard http://amzn.to/2GS2kUS UK Customers http://amzn.to/2DLH142 Read about Wayne Barron's Authoring Work. https://www.waynebarron.com Thank You Wayne Barron Dark Effects Studios (Like Us On Facebook) https://www.facebook.com/DarkEffectsStudios Follow us on Twitter https://twitter.com/DarkEffectsStud Spotlight on Dark Effects http://www.youtube.com/DESpotlight http://www.darkeffects.com View all our videos on Dark Effects Video Site http://watch.darkeffects.com http://www.cffspotlight.com/Dark_Effects_Production
Oracle Database11g tutorials 5:  how to retrieve Data Using SQL SELECT statement || SQL tutorials
 
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This SQL tutorial and Oracle database 11g tutorial for beginners will show how to retrieve data using SQL SELECT statement. Tool used in this tutorial is SQL developer. This tutorial series is part of SQL expert exam certification training. if you are preparing for SQL certification you can use my tutorials. This SQL Tutorial is a part of free training. Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=j7eYO7 You can download the Script which is used in this SQL tutorial from this link https://copy.com/yDQ46Tb64efm Contacts Email [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/RebellionRider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. in.linkedin.com/in/mannbhardwaj/ Thanks for linking, commenting, sharing and watching more of our videos This is Manish from The Code makers
Views: 190075 Manish Sharma
7 - Checking before insert, Stop duplicate entries  - Java Swing Project
 
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In this video we are going to write code to stop duplicate entries, it happen when we insert form data in database table directly, What we need to do is that we have to insert in database table before checking with sql query. Download Source Code : https://github.com/KamaleshSah/Bus-Managment-Application
Views: 6824 KAMLESHUTUBE
SQL Server 12 - Referential Integrity
 
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The concept of referential integrity is protecting relationships in our database. As a reminder, a relationship is when we have a foreign key reference another column. This column is usually the primary key of another table. This is a foreign key connection. If by any chance we establish a database structure where a table references another table, but we don't enforce this any way, the data in the table that is being referenced could be deleted, but the reference would still exist. If this happened, we would be breaking our referential integrity. We protect this by using referential constraints. A referential constraint tells the database that there is a connection between the two columns. This will allow you to configure what happens when the table being referenced gets updated or deleted. Another important thing to protecting referential integrity it to design the database in the correct way. This requires in depth knowledge of different types of relationships. How do you know when you need to put things in separate tables? We discussed all of the relationship possibilities in previous videos. In summary, relationships are not just something we assume… They are objectively defined so that the database knows they exists. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Support me! http://www.patreon.com/calebcurry Subscribe to my newsletter: http://bit.ly/JoinCCNewsletter Donate!: http://bit.ly/DonateCTVM2. ~~~~~~~~~~~~~~~Additional Links~~~~~~~~~~~~~~~ More content: http://CalebCurry.com Facebook: http://www.facebook.com/CalebTheVideoMaker Google+: https://plus.google.com/+CalebTheVideoMaker2 Twitter: http://twitter.com/calebCurry Amazing Web Hosting - http://bit.ly/ccbluehost (The best web hosting for a cheap price!)
Views: 7238 Caleb Curry
How to unlock HR sample user in Oracle Database 18c by Manish Sharma
 
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RebellionRider.com presents how to unlock sample schema/user in Oracle Database 18c by Manish Sharma. Timestamps ( 01:12 ) Step 1: Find out the container ID ( 02:10 ) How do we get to know whether we are connected to a CDB or PDB ( 04:41 ) Step 2: Find out the service name ( 05:49 ) Step 3: Create an entry in TNSNAMES.ORA ( 09:13 ) Step 4: Switch from Container DB to Pluggable DB ( 11:04 ) Step 5: Unlock the HR user ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: http://bit.ly/unlock-schema-in-18c Previous Tutorial ► How to Install Oracle 18c on Windows https://youtu.be/kptbJ22kfqA ►TNSNAMES.Ora file at GIT https://github.com/RebellionRider/Oracl18c/blob/master/tnsnames.ora ------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! ------------------------------------------------------------------------- ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ ___Facebook Official Page of Manish Sharma___ https://www.facebook.com/TheRebellionRider/ ___Facebook Official Page of RebellionRider.com___ https://www.facebook.com/RebellionRider.official/ You can also Email me at for E-mail address please check the About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 1171 Manish Sharma
Java Programming - Database MetaData - List of Tables in a Database
 
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Java Programming - Database MetaData - List of Tables in a Database
Views: 23 Professor Saad
Oracle 12c PL/SQL Security Features - Lesson 4 of 8 - Roles and PLSQL
 
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Learn how Roles really work with Oracle PL/SQL and why a privilege granted via a role can't be used in PL/SQL. Demonstrations, examples. See all lessons and many more free Oracle Database tutorials at https://www.skillbuilders.com/free-oracle-database-tutorials John Watson: We have the business of roles - roles and PL/SQL. The point here is that roles are invisible to PL/SQL. When you compile your code, only direct privileges are available. When you run your code, only direct privileges are available. This is for definer's rights, I should say. When you run the code, only direct privileges are available to grant to the definer. In effect, the definer's rights code, all roles are disabled within the stored procedure. And certainly roles are disabled when compiling the code. Functionally, it's equivalent to having issued the command SET ROLE NONE. Why is this? Why is it you can't use your privileges? It's perfectly straightforward. It's a technology limitation. Quickly to see what's going on. If I go in and say - let me connect or create a clear schema. I'll create myself, grant dba to jw identified by jw. I've created a user and given him ridiculously high privileges. Connect.... What can you do? You can do pretty much anything. If he wants to delete from scott.emp, he can do it. Let's roll back, because along with his dba role, he has the ability to pretty much anything to use the data. Now we'll create a procedure. If I create a procedure, create delemp as begin, and in there I delete from scott.emp, end, compilation errors. What are they? Show error. At line 2 table of view doesn't exist. That's line 2 delete from scott.emp. I remember way back in version 7, this cause so much confusion before we realized what was going on. It's quite simple that when we are within the code, as the definer or the invoker, because this is definer's rights code, when we are within the definer's rights code block or indeed when we are compiling a definer's rights code block, the roles are disabled and that's why we cannot see it. But why is this and why do I say it's a technology limitation? It's because roles can be enabled and disabled. They can be enabled or disabled. That makes it logically impossible to consider a role when executing a stored procedure because I might have the role enabled while I compile it, but how do I know that it's going to be enabled when I run it? If I grant execute on the code to a third party, he doesn't have the role at all and that he must not even be logged on. So it becomes a logical impossibility because of the way roles are used because roles are enabled or disabled. You can dynamically switch them on and off. It's a logical impossibility to use role within definer's rights program module. Invoker's rights code, however, is very different. That infuses some interesting issues. Invoker's rights code can use any roles that happen to be enabled for the user at the time that he invokes it in exactly the same way that an anonymous PL/SQL can use any enabled roles. In the security point of view, the definer can in effect grab any roles within his code that the invoker happens to have. Dave: [Question], John, pardon. How do you enable or disable a role? John: Right now there's several techniques. I won't spend too much time demonstrating. The easiest technique will be alter - I can set role none. And that will have disabled all my roles. Now if you look at this, I've got nothing. If I try to run my code and query - let's see. Yes. If I try to delete from scott.emp I can't see it. So I'll set role dba and now of course I can. That's the easiest way. In fact, there are much more [05:07 inaudible] ways to switch roles on and off. We can do it with operating system authentication and I can do it with proxy authentication. We have a persistent session through application server as well as a user when we pass that session out to many of the users that can switch roles on and off. That's the persistent session switch identities. Perhaps, best of all, I can create what I call secure application roles well it protect the role with a package and that can contest any number of issues - environment variables, maybe the time, maybe your IP address, perhaps the program you're using and switch roles on and off accordingly. So there are many ways for controlling roles and you should do it. Blindly granting roles and letting them be enabled all the time is not good security. The end result for this, however, you can get some pretty unexpected results within your code. I've tried to run through in our first half hour some of the issues that we see with PL/SQL in release 11g and earlier. After a short break, we'll move on to the 12c features.
Views: 270 SkillBuilders
How to Delete Query in SQL
 
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Follow this easy step by step tutorial to learn how to use Delete query in SQL server and see how table data can be removed. Don't forget to check out our site http://howtech.tv/ for more free how-to videos! http://youtube.com/ithowtovids - our feed http://www.facebook.com/howtechtv - join us on facebook https://plus.google.com/103440382717658277879 - our group in Google+ Database users are often required to remove records from the database tables. For this purpose, Delete query in SQL Server is used. It removes the pre-existing records from the tables. In this tutorial we will learn to use Delete query in SQL server. Step 1- Viewing Table Data The Delete query in SQL can be used for two purposes. It can be used to delete any specific row from the table as well as delete all the data records from table. To delete a specific row, we have to specify a reference with a Where clause. Any field can be made as reference, but here we will use a Number entity for it. For that we will be required to see the records of the table, by entering the following query in Query Editor: Select * from EMP and press F5 to execute. Step 2- Inserting a reference Now if we want to delete the record of Jones, we may use a where clause and specify its Employment No. as a reference. For that the query would be: Delete from EMP Where EMPNO=7566 Step 3- Record Deleted Let us fetch all records of Employee table once again, and we can observe that Employee No. 7566 no longer exists in the query result. And this is how we can use Delete query in SQL Server.
Procedure Cursor Exists N IN keywords
 
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Sql Server 2008 R2 Procedure Create & Using Cursor
Views: 23 Shivashwor Joshi

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