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What is a Materialized View?
 
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http://zerotoprotraining.com This video explains the concept of a materialized view in a database also known as materialized query table an indexed view. Category: Databases Tags: Materialized View
Views: 102362 HandsonERP
SQL Server join :- Inner join,Left join,Right join and full outer join
 
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For more such videos visit http://www.questpond.com See our other Step by Step video series below :- Learn Angular tutorial for beginners https://tinyurl.com/ycd9j895 Learn MVC Core step by step :- http://tinyurl.com/y9jt3wkv Learn MSBI Step by Step in 32 hours:- https://goo.gl/TTpFZN Learn Xamarin Mobile Programming Step by Step :- https://goo.gl/WDVFuy Learn Design Pattern Step by Step in 8 hours:- https://goo.gl/eJdn0m Learn C# Step by Step in 100 hours :- https://goo.gl/FNlqn3 Learn Data structures & algorithm in 8 hours :-https://tinyurl.com/ybx29c5s Learn SQL Server Step by Step in 16 hours:- http://tinyurl.com/ja4zmwu Learn Javascript in 2 hours :- http://tinyurl.com/zkljbdl Learn SharePoint Step by Step in 8 hours:- https://goo.gl/XQKHeP Learn TypeScript in 45 Minutes :- https://goo.gl/oRkawI Learn webpack in 50 minutes:- https://goo.gl/ab7VJi Learn Visual Studio code in 10 steps for beginners:- https://tinyurl.com/lwgv8r8 Learn Tableau step by step :- https://tinyurl.com/kh6ojyo Preparing for C# / .NET interviews start here http://www.youtube.com/watch?v=gaDn-sVLj8Q In this video we will try to understand four important concepts Inner joins,Left join,Right join and full outer joins. We are also distributing a 100 page Ebook ".Sql Server Interview Question and Answers". If you want this ebook please share this video in your facebook/twitter/linkedin account and email us on [email protected] with the shared link and we will email you the PDF.
Views: 793145 Questpond
Indexes in sql server   Part 35
 
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In this video we will learn about What are indexes Why do we use indexes Advantages of indexes These concepts are applicable to sql server 2000, 2005 and 2008 Text version of the video http://csharp-video-tutorials.blogspot.com/2012/09/indexes-in-sql-server-part-35.html Slides http://csharp-video-tutorials.blogspot.com/2013/08/part-35-indexes.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
Views: 348845 kudvenkat
Normalization - 1NF, 2NF, 3NF and 4NF
 
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Database Normal Forms
Views: 915160 channel5567
Oracle 11G Tutorial | Dynamic SQL | InfiniteSkills Training
 
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Want all of our free Oracle videos? Download our free iPad app at http://itunes.apple.com/us/app/video-training-courses-from/id418130423?mt=8 http://www.infiniteskills.com/training/learning-oracle-database-11g.html Oracle trainer Lewis Cunningham offers professional tips on Dynamic SQL in this hands-on tutorial from InfiniteSkills. More free content can be found on the product page for the 8-hour 11g course. YouTube: https://www.youtube.com/user/OreillyMedia Facebook: https://www.facebook.com/OReilly/?fref=ts Twitter: https://twitter.com/OReillyMedia Website: http://www.oreilly.com/
Database Schema
 
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How to draw a diagram representing the entities, relationships and fields of a relational database. If this video helped you, you may also benefit from these further examples of constructing database schema: http://youtu.be/0r43J3qkkT4 - identifying the tables in a given situation http://youtu.be/aWP2MLAYQfk - building the schema and determining the relationships I'm Mr. Woo and my channel is all about learning - I love doing it, and I love helping others to do it too. I guess that's why I became a teacher! I hope you get something out of these videos - I upload almost every weekday, so subscribe to find out when there's something new! For categorised playlists: http://www.misterwootube.com Main channel: http://youtube.com/misterwootube Discussion: http://facebook.com/misterwootube Worksheets and other resources: http://woo.jamesruse.nsw.edu.au
Views: 319189 Eddie Woo
Oracle SQL Tutorial 16 - Parent Child Relationships
 
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So far in this series we have discussed database design, creating tables, and constraints. We've brought up the concept of foreign keys, but we have not explained how to create them. That is the goal of this video and the upcoming videos. We want to study those foreign keys! Let's make them not so foreign. Let's learn the proper way to define a foreign key. As a reminder, a foreign key is a column that references a column of another table. The column it references must either be a primary key, or have the UNIQUE constraint. This means that every value inside of the column that is labeled as a foreign key, there must be that value in some row of the referenced column. As an example, imagine that we have the users table, and we have a table service_requests. We could have a column in the service_request that references a column in the users table. Usually this would be the primary key that is referenced, but there is nothing stopping you from referencing a unique column. Just for fun, let's go through an example using the username column. If we have a service_requests table, every single row within the table is going to be what some would consider an instance of a service_request. This means that the table columns are like the blueprint for what a service request looks like and then each row is an individual service request. If we have one of the columns labeled as a foreign key to the username of the users table, what does that mean practically? It means that for a single row, the value for that column must be a value that exists in the users table. We could have a service_request submitted by a user with the username of Yoloswagman. This means that there must be a row inside of the users table that has the value Yoloswagman for the username column. This brings up the concept of parent and child relationships. Yoloswagman in this situation is the parent, and his service request is the child. When we draw it out, it makes sense why a primary key must be UNIQUE. If we had two Yoloswagmans, the child would not know which column is the parent. The same applies if we were using IDs and we had So remember, always reference a primary key or a column with the UNIQUE constraint. Now, I have a question for you. Do foreign keys automatically have the UNIQUE constraint, just like primary keys? The answer is no. A parent row can have many child rows. It makes sense because the user could submit multiple service requests. Can we force the column to be unique? Absolutely. If that was the case, the user could only make one service request. Another question. Do foreign keys automatically have the NOT NULL constraint, just like primary keys? The answer is no. Essentially what this means is that a child could be created with no parent. Can we force the column to be NOT NULL? Absolutely. It is ok in some situations to allow the row to be null, but in this situation it makes no sense. It would be wise for us to add that constraint ourselves. So now that you understand some more differences between primary and foreign keys and parent child relationships, take all of these questions into consideration when you are creating foreign keys. In the next video, we are going to start a small project that is going to require multiple tables. We'll take a video to design our structure and then we'll get to creating those foreign keys in Oracle SQL Developer. Stick around and if you like these videos please be a serious supporter and subscribe to my channel. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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: 10080 Caleb Curry
Oracle Tutorial - 10 - indexes
 
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Oracle PL/SQL Query Database. Check more videos on IT courses on iAspireAcademy.org
Views: 22433 iAspireAcademy
SQL: Group By,  Having, Min, Max Sum
 
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Learn to summarize yoru data using the SQL Aggregates such as count and sum and the GROUP BY and HAVING clauses of the SELECT statement
Views: 141997 Michael Fudge
IQ15:  6 SQL Query Interview Questions
 
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6 common SQL Query Questions
Views: 505618 The Coding Interview
Machine Learning with Oracle
 
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Introduction - 0:00 Overview Machine Learning in Oracle - 1:31 Machine Learning theory - 6:04 Demonstration: preparation and building the model - 11:52 Demonstration: run the prediction and adapt the application - 26:24 How to get started - 33:33 Without a doubt Machine Learning / Artificial Intelligence is an incredibly powerful technology with a huge potential. It brings benefits across many industries and business functions: From better targeting in the marketing/sales domain to predictive maintenance in manufacturing. This video-webinar is a kickstart to Machine Learning. You will learn the required theoretical knowledge and then we'll go through a real-life example: intelligent sales with ML. We'll create our very first ML model, and use it to make an existing application intelligent with sales recommendations. After this webinar you will have the basic ingredients to apply ML to your own business cases! Note that you don't require any previous knowledge of ML to be able to understand this session. Powerpoint and background material can be found here: https://ptdrv.linkedin.com/cmaj4xt
Views: 4170 Jeroen Kloosterman
Foreign Key | Database Management System
 
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To ask your doubts on this topic and much more, click on this Direct Link: http://www.techtud.com/video-lecture/lecture-foreign-key IMPORTANT LINKS: 1) Official Website: http://www.techtud.com/ 2) Virtual GATE: http://virtualgate.in/login/index.php Both of the above mentioned platforms are COMPLETELY FREE, so feel free to Explore, Learn, Practice & Share! Our Social Media Links: Facebook Page: https://www.facebook.com/techtuduniversity Facebook Group: https://www.facebook.com/groups/virtualgate Google+ Page: https://plus.google.com/+techtud/posts Last but not the least, SUBSCRIBE our YouTube channel to stay updated about the regularly uploaded new videos.
Views: 236403 Techtud
Oracle APEX 4.2.4 Tutorial (05 of 22) - Create a table using Object Browser and define a constraint
 
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APEX 4.2.4 is out of date. Please try the APEX 18.1 video series. https://youtu.be/65LExgaQMHI See how to use Object Browser in APEX's SQL Workshop to create a table. How to add a constraint to field in a table is also shown. In this example a uniqueness constraints is added to a field.
Views: 19251 Jennifer Kreie
Oracle SQL Tutorial For Beginners | Oracle SQL Online Training - Session 1
 
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Course : Oracle SQL Online Training Mode of Training : Online Duration : 40 Hours Timings : Flexible Oracle SQL Online Training Demo Registration Link : http://svsoftsolutions.com/demo.aspx Introduction to SQL What is SQL? What Can SQL do? RDBMS SQL Syntax Database Tables SQL Statements Overview of Most Important SQL Commands SELECT UPDATE DELETE INSERT CREATE TABLE ALTER TABLE DROP TABLE CREATE INDEX DROP INDEX SQL SELECT Statement SELECT syntax Demo Database SELECT Column Example SELECT * Example SQL Distinct SELECT DISTINCT Statement SELECT DISTINCT Syntax SELECT DISTINCT Example SQL WHERE Clause WHERE Clause WHERE Clause Example Operators in the WHERE Clause SQL AND & OR Operators AND Operator Example OR Operator Example Combining AND & OR SQL ORDER BY ORDER BY Syntax ORDER BY Example ORDER BY DESC Example ORDER BY Several Column Examples SQL Insert Into INSERT INTO Syntax INSERT INTO Examples Insert Data into Specified Columns SQL UPDATE UPDATE Syntax UPDATE Example Watch out UPDATE statement. SQL DELETE DELETE Syntax DELETE Examples Delete All the Data SQL Aliases SQL Alias Syntax for Columns Alias Example for Table Columns Alias Example for Tables. SQL Joins Different SQL JOINs INNER JOIN LEFT OUTER JOIN RIGHT OUTER JOIN FULL OUTER JOIN SQL UNION UNION Syntax UNION Example UNION ALL Syntax UNION ALL Example SQL Insert Into Select INSERT INTO SELECT Syntax INSERT INTO SELECT Examples SQL Create Table CREATE TABLE Syntax CREATE TABLE Example SQL Constraints CREATE TABLE + CONSTRAINT Syntax NOT NULL Constraint UNIQUE Constraint UNIQUE Constraint on CREATE TABLE UNIQUE Constraint on ALTER TABLE To DROP a UNIQUE Constraint PRIMARY KEY Constraint PRIMARY KEY Constraint on CREATE TABLE PRIMARY KEY Constraint on ALTER TABLE To DROP a PRIMARY KEY Constraint FOREIGN KEY Constraint FOREIGN KEY Constraint on CREATE TABLE FOREIGN KEY Constraint on ALTER TABLE To DROP a FOREIGN KEY Constraint CHECK Constraint CHECK Constraint on CREATE TABLE CHECK Constraint on ALTER TABLE To DROP a CHECK Constraint DEFAULT Constraint on CREATE TABLE DEFAULT Constraint on ALTER TABLE To DROP a DEFAULT Constraint SQL Create Index CREATE INDEX Syntax CREATE UNIQUE INDEX Syntax CREATE INDEX Example SQL DROP Command The DROP INDEX Statement The DROP TABLE Statement The DROP DATABASE Statement The TRUNCATE TABLE Statement SQL ALTER Command The ALTER TABLE Statement ALTER TABLE Example Change Data Type Example DROP COLUMN Example SQL VIEWS CREATE VIEW Statement CREATE VIEW Syntax CREATE VIEW Examples CREATE OR REPLACE VIEW Syntax Dropping a View SQL NULL Values Working with NULL Values IS NULL IS NOT NULL SQL NULL Functions NVL COALESCE For more details visit our website : www.svsoftsolutions.com Or reach us @ USA : +1-845-915-8712 (Toll Free), India : +91-9642373173
Views: 512 SV Soft Solutions
Python With Oracle Database
 
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Import CSV data into oracle table using python Reference : http://guideme360.in/2017/08/25/python-oracle-database/ Channel : https://www.youtube.com/c/GuideMe #TheProgrammingGuy#GuideMe360 #python #pythontutorial
Views: 10923 The Programming Guy
SQL Tutorial 11:  Create Views
 
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View is another object that you could store in database. As pre-cursor in preparing reports, view is an effective simplified table from SELECT JOINed query. You don’t need to re-execute a SELECT JOIN that you have defined in the past. Once you have set the correct join, save it on a view. This video tutorial shows on how to create views from given SELECT LEFT JOINs. You may see the structure of a view as if you are describing a table. You can distinguish view from other objects inside a database as you list it with tables. It also shows the work around on how to sort in a specified ORDER BY clause and save it on a view. Normally, view does not accept script with an order by. It includes on how to join table with itself by simply setting up a different alias name.
Views: 1062 Jerry Esperanza
Oracle - Tables - Advanced
 
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Oracle - Tables - Advanced
Views: 2386 Chris Ostrowski
Oracle || Corelated Subqueries Part - 1 by Dinesh
 
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DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS , ADF, INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo............
Oracle SQL Tutorial 12 - Intro to Constraints
 
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As I believe I've mentioned in an earlier video, a constraint is basically a rule we can put in our database that prevents someone from putting the wrong data in. It protects our relationships and data integrity. Because the goal of these constraints are to protect our data integrity, you may hear them called integrity constraints. There are many integrity constraints we are going to talk about: NOT NULL UNIQUE PRIMARY KEY FOREIGN KRY CHECK There is also the DEFAULT attribute. These are all keywords we can add to our columns that will change the way the database works with our data and also prevents incorrect data. NOT NULL is a constraint you can put on a column that prevents nulls. A null is the absence of a value. When we say null, we are saying that every single row has to have a value for this column. UNIQUE is a constraint that makes every row have a unique value for this column. Now note, this does not require values to be put it, and it will allow multiple rows to be null. Next, we are going to talk about primary keys. What qualifies a column as a candidate key? First, not a single row should have a null for that column. Second, every row must be unique. The primary key constraint is essentially a combination of the NOT NULL constraint and the UNIQUE constraint. The foreign key constraint sets the requirement that any value in this column for any row must match a row in another column. Check constraints allow us to be more strict with what data is allowed in our database. NOT NULL and UNIQUE give some level of restriction, but what if we want something more specific? For example, what if we only want values between 0 and 100? That is where check constraints come in. When using check constraints, you give a boolean expression. A boolean expression is something that can be evaluated to true or false. It will only insert the row if the value you try to put into the row makes the expression evaluate to true. So if you put in a value too great or small, the expression will be false and the data is not allowed to be entered. The default constraint is a value you can give a column, and if for any reason when the row is created in the table a value is not provided, the default value will be given. So for example, we could have a bank account table where the balance defaults to 0. How do you actually implement these constraints when you are creating a table? In the next video we are going to be adding these to our users table. Please be sure to subscribe! ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 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: 16365 Caleb Curry
SQL: Understanding the JOIN clause in the SELECT statement
 
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This screencast introduces table joins, including differences between SQL 89 and SQL 92 join syntax. The various join types such as natural (inner) joins and left/right/full outer joins, and cross joins.
Views: 137966 Michael Fudge
DBMS Indexing: The Basic Concept
 
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A quick introduction to the concept of indexing in RDBMSs
Views: 150087 Brian Finnegan
Oracle REST Data Services Development with Oracle SQL Developer
 
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Version 4.2 of Oracle SQL Developer makes it very easy to develop and deploy your Oracle REST Data Services for your Oracle Database.
Views: 10483 Jeff Smith
Part 1   How to find nth highest salary in sql
 
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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/2014/05/part-1-how-to-find-nth-highest-salary_17.html This is a very common SQL Server Interview Question. There are several ways of finding the nth highest salary. By the end of this video, we will be able to answer all the following questions as well. How to find nth highest salary in SQL Server using a Sub-Query How to find nth highest salary in SQL Server using a CTE How to find the 2nd, 3rd or 15th highest salary Let's use the following Employees table for this demo Use the following script to create Employees table Create table Employees ( ID int primary key identity, FirstName nvarchar(50), LastName nvarchar(50), Gender nvarchar(50), Salary int ) GO Insert into Employees values ('Ben', 'Hoskins', 'Male', 70000) Insert into Employees values ('Mark', 'Hastings', 'Male', 60000) Insert into Employees values ('Steve', 'Pound', 'Male', 45000) Insert into Employees values ('Ben', 'Hoskins', 'Male', 70000) Insert into Employees values ('Philip', 'Hastings', 'Male', 45000) Insert into Employees values ('Mary', 'Lambeth', 'Female', 30000) Insert into Employees values ('Valarie', 'Vikings', 'Female', 35000) Insert into Employees values ('John', 'Stanmore', 'Male', 80000) GO To find the highest salary it is straight forward. We can simply use the Max() function as shown below. Select Max(Salary) from Employees To get the second highest salary use a sub query along with Max() function as shown below. Select Max(Salary) from Employees where Salary [ (Select Max(Salary) from Employees) To find nth highest salary using Sub-Query SELECT TOP 1 SALARY FROM ( SELECT DISTINCT TOP N SALARY FROM EMPLOYEES ORDER BY SALARY DESC ) RESULT ORDER BY SALARY To find nth highest salary using CTE WITH RESULT AS ( SELECT SALARY, DENSE_RANK() OVER (ORDER BY SALARY DESC) AS DENSERANK FROM EMPLOYEES ) SELECT TOP 1 SALARY FROM RESULT WHERE DENSERANK = N To find 2nd highest salary we can use any of the above queries. Simple replace N with 2. Similarly, to find 3rd highest salary, simple replace N with 3. Please Note: On many of the websites, you may have seen that, the following query can be used to get the nth highest salary. The below query will only work if there are no duplicates. WITH RESULT AS ( SELECT SALARY, ROW_NUMBER() OVER (ORDER BY SALARY DESC) AS ROWNUMBER FROM EMPLOYEES ) SELECT SALARY FROM RESULT WHERE ROWNUMBER = 3
Views: 804520 kudvenkat
Part 6   Transform rows into columns in sql server
 
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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/2014/06/part-6-transform-rows-into-columns-in.html This is another common sql server interview question. We will be using Countries table in this example. SQL to create the table Create Table Countries ( Country nvarchar(50), City nvarchar(50) ) GO Insert into Countries values ('USA','New York') Insert into Countries values ('USA','Houston') Insert into Countries values ('USA','Dallas') Insert into Countries values ('India','Hyderabad') Insert into Countries values ('India','Bangalore') Insert into Countries values ('India','New Delhi') Insert into Countries values ('UK','London') Insert into Countries values ('UK','Birmingham') Insert into Countries values ('UK','Manchester') Here is the interview question. Write a sql query to transpose rows to columns. Using PIVOT operator we can very easily transform rows to columns. Select Country, City1, City2, City3 From ( Select Country, City, 'City'+ cast(row_number() over(partition by Country order by Country) as varchar(10)) ColumnSequence from Countries ) Temp pivot ( max(City) for ColumnSequence in (City1, City2, City3) ) Piv
Views: 174695 kudvenkat
Clustered vs. Nonclustered Index Structures in SQL Server
 
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Clustered and nonclustered indexes share many of the same internal structures, but they're fundamentally different in nature. Watch Microsoft Certified IT Professional Jon Seigel explain the similarities and differences of clustered and nonclustered indexes, using a real-world example to show how these structures work to improve the performance of SQL queries. Blog post on primary key vs. the clustered index: http://voluntarydba.com/post/2012/10/02/The-Primary-Key-vs-The-Clustered-Index.aspx CREATE INDEX statement reference: http://technet.microsoft.com/en-us/library/ms188783.aspx ALTER INDEX statement reference: http://technet.microsoft.com/en-us/library/ms188388.aspx Index navigation internals by example: http://sqlblog.com/blogs/paul_white/archive/2011/08/09/sql-server-seeks-and-binary-search.aspx Sample index data is from the AdventureWorksLT2008R2 sample database: http://awlt2008dbscript.codeplex.com/releases/view/46169 Visit my channel for more database administration videos: https://www.youtube.com/voluntarydba Subscribe to get notified about my latest videos: https://www.youtube.com/voluntarydba?sub_confirmation=1 Read additional content on my blog: http://voluntarydba.com Follow on Twitter: https://twitter.com/voluntarydba Like on Facebook: https://facebook.com/voluntarydba
Views: 267444 Voluntary DBA
SQL Server interview questions :- What are Sub Query and Co-related Queries ?
 
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For more such videos visit http://www.questpond.com See our other Step by Step video series below :- Learn Angular tutorial for beginners https://tinyurl.com/ycd9j895 Learn MVC Core step by step :- http://tinyurl.com/y9jt3wkv Learn MSBI Step by Step in 32 hours:- https://goo.gl/TTpFZN Learn Xamarin Mobile Programming Step by Step :- https://goo.gl/WDVFuy Learn Design Pattern Step by Step in 8 hours:- https://goo.gl/eJdn0m Learn C# Step by Step in 100 hours :- https://goo.gl/FNlqn3 Learn Data structures & algorithm in 8 hours :-https://tinyurl.com/ybx29c5s Learn SQL Server Step by Step in 16 hours:- http://tinyurl.com/ja4zmwu Learn Javascript in 2 hours :- http://tinyurl.com/zkljbdl Learn SharePoint Step by Step in 8 hours:- https://goo.gl/XQKHeP Learn TypeScript in 45 Minutes :- https://goo.gl/oRkawI Learn webpack in 50 minutes:- https://goo.gl/ab7VJi Learn Visual Studio code in 10 steps for beginners:- https://tinyurl.com/lwgv8r8 Learn Tableau step by step :- https://tinyurl.com/kh6ojyo Preparing for C# / .NET interviews start here http://www.youtube.com/watch?v=gaDn-sVLj8Q In this video we will try to understand what are SQL server sub queries , co-related queries and how they differ from each other. We are also distributing a 100 page Ebook "Sql Server Interview Question and Answers". If you want this ebook please share this video in your facebook/twitter/linkedin account and email us on [email protected] with the shared link and we will email you the PDF.
Views: 233017 Questpond
Oracle - Normalization
 
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Oracle - Normalization
Views: 3611 Chris Ostrowski
Data modelling - an introduction
 
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Introduction to normalization and database design. By the end of the presentation I give a short demo of how to create an ER Model in MySQL Workbench.
Views: 203076 Niels Henrik Juul Hansen
What is Database & SQL?
 
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https://www.guru99.com/introduction-to-database-sql.html This Database tutorial explains the concept of DBMS (Database Management System).To help beginners, it cites examples of real-life data base management systems. It explains types of DBMS for beginners. It explains how SQL works. This video course is a complete introduction to Database. Click on the time points below to view different sections! 00:35 What is Data base? 00:52 What is a DataBase Management System (DBMS)? What is a Database? Database is a systematic collection of data. Databases support storage and manipulation of data. Databases make data management easy. What is SQL? Structured Query language (SQL) pronounced as "S-Q-L" or sometimes as "See-Quel"is actually the standard language for dealing with Relational Databases. Like, share and subscribe our channel for more videos. Enjoy our free tutorial on our YouTube channel and our website. Watch more videos on our YouTube channel at https://www.youtube.com/channel/UC19i1XD6k88KqHlET8atqFQ READ this as a book on Amazon by viewing at http://amzn.to/2qaUsUv (SQL) Visit our website for more! www.guru99.com FACEBOOK! Would you prefer to watch more about us? Like our page for more https://www.facebook.com/guru99com/ TWITTER! Tweet for us on Twitter with #guru99 and follow us on https://twitter.com/guru99com THANKS! We appreciate you reading this and hope you have a wonderful day! Sincerely, Guru99
Views: 1092777 Guru99
Oracle APEX 4.2.4 Tutorial (10 of 22) - Forms and reports on a table
 
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APEX 4.2.4 is out of date. Please try the APEX 18.1 video series. https://youtu.be/65LExgaQMHI This series of videos uses a scenario in which several forms with reports need to be created. This video explain how a review of the data model helped the designers decides which forms and reports to create.
Views: 12286 Jennifer Kreie
Complex Joins in Tableau
 
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In this tutorial video, we will be going over complex joins in Tableau. We'll talk about: - How to join more than two tables together, - What data is included and excluded for various types of joins, - How your joins affect calculations in your views, and more. We'll also be talking briefly about how Level of Detail expressions can be used with joined data that has duplicate records. Boulder Insight - http://boulderinsight.com/ Blog - http://boulderinsight.com/index.php/boulder-insight-blog/
Views: 53348 Boulder Insight
Backbone.js Tutorial - 6 - Introduction to Views
 
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Visit my website: www.VictorDozal.com This backbone.js tutorial introduces backbone.js views. If you have any questions, post a comment below, or go to my website and contact me! :)
Views: 13556 Victor Dozal
DataGrip Introduction
 
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DataGrip is an IDE from JetBrains built for database developers. It allows you to quickly migrate and refactor relational databases, construct efficient, statically checked SQL queries and much more. In this video, we highlight some of DataGrip's most powerful features. It is also relevant to the database plugin of IntelliJ IDEA, PhpStorm, PyCharm and RubyMine. For more details visit https://www.jetbrains.com/datagrip.
Views: 35875 JetBrainsTV
XML/SQL Exchange - NIEM IEPD Training: ULEXS getDataItem vehicle license worked example
 
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See how to build a working XML query/response system with SQL database accessing using NIEM ULEXS schema and dictionary. Using the CAM toolkit we demonstrate quickly building everything needed. Taking the existing ULEX-SR schema, first ingest it then clean it up by removing unnecessary parts. Next adapt it by adding vehicle search results details from LEXS v4.0 dictionary components via drag and drop visual design. Validate the structure components for consistency with the NIEM NDR and build and view your data models, then export your XSD schema and JAXB bindings. Then switch to the SQL viewer and pick and map your SQL table components into the vehicle search results XML structure. Save and run live with SQL data to verify desired results output. Next add a parameter filter to select only the requested data record based on license ID number. Then validate the XML content using the CAMV engine. Document your completed XML exchange, and package the NIEM IEPD artifacts. Congratulations, with a few more steps you can integrate the solution into your messaging middleware and complete the application web services. Credits: Recorded on Ubuntu using Kazam and OpenShot. Disclaimer: the information in this video and the views expressed on this topic are those of the author and do not necessarily reflect the views of Oracle. It is intended for information purposes only, and may not be incorporated into any contract. It is not a commitment to deliver any material, code, or functionality, and should not be relied upon in making purchasing decisions. The development, release, and timing of any features or functionality described for Oracle's products remains at the sole discretion of Oracle.
Views: 1082 David Webber
Part 2   SQL query to get organization hierarchy
 
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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/2014/05/part-2-sql-query-to-get-organization.html To get the best out of this video, the following concepts need to be understood first. These are already discussed in SQL Server Tutorial. 1. Self-Join - http://www.youtube.com/watch?v=qnYSN_7qwgg 2. CTE - http://www.youtube.com/watch?v=ZXB5b-7HJHk 3. Recursive CTE - http://www.youtube.com/watch?v=GGoV0wTMCg0 Here is the problem definition: 1. Employees table contains the following columns a) EmployeeId, b) EmployeeName c) ManagerId 2. If an EmployeeId is passed, the query should list down the entire organization hierarchy i.e who is the manager of the EmployeeId passed and who is managers manager and so on till full hierarchy is listed. For example, Scenario 1: If we pass David's EmployeeId to the query, then it should display the organization hierarchy starting from David. Scenario 2: If we pass Lara's EmployeeId to the query, then it should display the organization hierarchy starting from Lara. We will be Employees table for this demo. SQL to create and populate Employees table with test data Create table Employees ( EmployeeID int primary key identity, EmployeeName nvarchar(50), ManagerID int foreign key references Employees(EmployeeID) ) GO Insert into Employees values ('John', NULL) Insert into Employees values ('Mark', NULL) Insert into Employees values ('Steve', NULL) Insert into Employees values ('Tom', NULL) Insert into Employees values ('Lara', NULL) Insert into Employees values ('Simon', NULL) Insert into Employees values ('David', NULL) Insert into Employees values ('Ben', NULL) Insert into Employees values ('Stacy', NULL) Insert into Employees values ('Sam', NULL) GO Update Employees Set ManagerID = 8 Where EmployeeName IN ('Mark', 'Steve', 'Lara') Update Employees Set ManagerID = 2 Where EmployeeName IN ('Stacy', 'Simon') Update Employees Set ManagerID = 3 Where EmployeeName IN ('Tom') Update Employees Set ManagerID = 5 Where EmployeeName IN ('John', 'Sam') Update Employees Set ManagerID = 4 Where EmployeeName IN ('David') GO Here is the SQL that does the job Declare @ID int ; Set @ID = 7; WITH EmployeeCTE AS ( Select EmployeeId, EmployeeName, ManagerID From Employees Where EmployeeId = @ID UNION ALL Select Employees.EmployeeId , Employees.EmployeeName, Employees.ManagerID From Employees JOIN EmployeeCTE ON Employees.EmployeeId = EmployeeCTE.ManagerID ) Select E1.EmployeeName, ISNULL(E2.EmployeeName, 'No Boss') as ManagerName From EmployeeCTE E1 LEFT Join EmployeeCTE E2 ON E1.ManagerID = E2.EmployeeId
Views: 260997 kudvenkat
Subqueries: Databases for Developers #11
 
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In SQL you can base queries on the results of other queries. This video explains the various types of subquery and their uses, covering: - Inline views - IN & EXISTS - Common table expressions/subquery factoring/with clause - Scalar subqueries Take the course; Databases for Developers: Next Level https://blogs.oracle.com/academy/take-your-sql-skills-to-the-next-level-with-this-free-online-10-part-tutorial Further reading: About Queries and Subqueries: https://docs.oracle.com/en/database/oracle/oracle-database/18/sqlrf/About-Queries-and-Subqueries.html Using Subqueries: https://docs.oracle.com/en/database/oracle/oracle-database/18/sqlrf/Using-Subqueries.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: 1180 The Magic of SQL
Clustered and nonclustered indexes in sql server   Part 36
 
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In this video we will learn about 1. Different types of indexes in sql server 2. What are clustered indexes 3. What are NonClustered indexes 4. Difference between clustered and non clustered indexes Text version of the video http://csharp-video-tutorials.blogspot.co.uk/2012/09/clustered-and-non-clustered-indexes.html Slides http://csharp-video-tutorials.blogspot.com/2013/09/part-36-clustered-nonclustered-indexes.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
Views: 429246 kudvenkat
Oracle SQL PLSQL 12C Tutorial 15   ALTER Statement
 
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This Video Tutorial Will Describe how to change the structure of an existing table. This command will also work on other versions of database like Oracle 11g Database, Oracle 10g Database, Oracle 9i Database, Oracle 8i Database, Oracle 8 Database and so on. This command is used to add, modify or delete the columns from the table. You can add, modify or delete a single column or multiple columns at a time. Full Syntax will be given in this video tutorial about how to use the ALTER table command. Along with the live example to add, modify or delete the columns from the table. All the keywords, format, mandatory clauses etc are described in this video.
Views: 36 game hounds
Introduction to SQL - Tutorial for beginners to databases. PART 1
 
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A fun, energetic and clear introduction to SQL and databases for just about anybody to understand! Take the FULL course: https://goo.gl/uY4wDo Finally understand SQL without being bored to tears or getting frustrated. Also grab my nice DISCOUNT on my SQL for FinTech job seekers course: https://goo.gl/jZHfVe This video answers: What is SQL? How is SQL used? What is a database? Why use a database instead of a spreadsheet? These videos have an intrinsic cost of about $1000 to make so if you enjoy them, please consider donating so that I can make more videos on a more regular basis! It's not just standing up and talking. It could be weeks of planning/research, then multiple takes, then hours of editing then responding to comments. Don't forget the thousands spent on the equipment used. I've spent a lot of money on the equipment I use to shoot/edit these and when they fail (which they are), I have to spend even more money to replace then. Then there is the fact I use up all my free time to do videos now. I have put aside friends and family to focus on this because I feel this is my calling to help others. My job is also very demanding and always comes first, so that leaves little time for videos. Thanks! https://www.paypal.com/cgi-bin/webscr... Part 2: https://goo.gl/ppQz9r NOTE: SQL combines the roles of data definition, data manipulation, and query in a single language. It was one of the first commercial languages for the relational model, although it departs in some respects from the relational model as described by Codd (for example, the rows and columns of a table can be ordered). Enjoy my SQL for beginners video! Check out my highly rated Option Trading Video: http://www.youtube.com/watch?v=357Lvf... Check out my FIX Protocol Training Series: http://www.youtube.com/watch?v=rW8sDk... Fun and Easy to Understand training on: Trading & Trading Techniques Wall Street Technology FIX Protocol Application Support Engineering This channel depends on YOUR support! Please subscribe and follow me on Google+ for more excellent videos! Thank you! -~-~~-~~~-~~-~- Take beginner SQL course and get certified: http://goo.gl/k2HKY8 -~-~~-~~~-~~-~-
Views: 670832 FIXProtocol
SQL Views
 
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Follow the Books: http://amzn.to/1RjjJCf Slides at: http://www.aaronbuma.com/2016/01/views/ This week's session is on SQL Views: what they are, how to create them, how to insert, update and delete data through them along with other key details to know!
Views: 151 Aaron Buma
09 of  13 - Oracle APEX 5 - Create a master-detail form (uses 2 tables)
 
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A new series using APEX 18.1 is now available. https://youtu.be/65LExgaQMHI This is one in a series of videos about creating an application using Oracle APEX 5. In this video we create two master-detail tables. First, we look at the data model and see why two tables should be appear together in a form. Then, we create two master-detail forms. SQL scripts for this series are available to download at: http://web.nmsu.edu/~jkreie/oracle/DatabaseTopics.html or by request at http://db.kreie.net
Views: 36800 Jennifer Kreie
Oracle Fusion Middleware in a Real Life Example
 
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Blog: http://antonis-antoniou.blogspot.com/ LinkedIn: https://www.linkedin.com/in/antonisantoniou Twitter: @AntoniouAntonis
Views: 57395 aantoniou10
Understanding the Get Proactive functionality - An example with Oracle Financials
 
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The Get proactive functionality is available on the Oracle support website and broken down in 3 areas: Prevent - Prevent known problems, to help keep your Oracle software and systems healthy. Resolve - Discover new capabilities and tools to help you resolve issues. Upgrade - Leverage best practices and tools to help guide you through the upgrade process for your Oracle products. Re-uploaded the video in higher quality settings, downside lost the previous hitcount views and comments.
Views: 20787 Alex Antonatos
Oracle Fusion Middleware Whiteboard
 
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An introductory message of Oracle Fusion Middleware to an IT audience.
Views: 68412 danburg3
Histogram Explained
 
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This video will show you step by step on how to create a histogram from date.
Views: 227397 cylurian
Oracle APEX 4.2.4 Tutorial (04 of 22) - Create triggers and insert data into tables
 
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APEX 4.2.4 is out of date. Please try the APEX 18.1 video series. https://youtu.be/65LExgaQMHI This video show how to upload SQL scripts in SQL Workshop, a tool without APEX, and run these scripts to create triggers and insert data in tables. (The tables were created in the previous video.) This video also show an example of updating a to-do item in the Team Development tool in APEX.
Views: 18447 Jennifer Kreie
Conceptual, Logical & Physical Data Models
 
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Learn about the 3 stages of a Data Model Design - Conceptual Data Model - Logical Data Model - Physical Data Model
Views: 65346 DataAcademy.in
11-Example to work with different Views and write event related with view.mp4
 
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11- Android Mobile Applications- Level 1 -Example to work with different Views and write event related with view.mp4
Views: 3069 Adel Sabour