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How To Kill All Database Processes On SQL Server
 
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SQl management studio provides lot of facilities to manage SQL processes. The “Activity monitor screen” which will show you some very useful and important information about SQL processes. It will show you all active processes, there status, number of open transactions for each process, the application by which the process is generated, Wait time CPU and memory utilisation, and the host name, means the host or the machine by which the process is initiated etc. If a process is hanging, it will show the process icon with an hour glass. Refresh it several times, sometimes the icon will turn to sleep mode if the process completes its execution. If the icon remains an hour glass, the process may be hanging. Use other info as well to decide if the process is really hanging. If you double click on the process ID it will show the SQL stamen subjected to the execution of the process. If a process is hanging you can identify which application has originated the process, which SQL stamen is hanging and even more from which machine or the host the process is initiated If some application users are complaining about uneven slowness, uneven timeouts etcetera, the reason behind may be one or more processors are hanging. What can you do now? You can restart the SQL server or the service which will disconnect all databases and all applications disturbing all the users. Or otherwise you can take the database to off line and bring it back to online. Or you can disconnect all connections to the database. The disturbance may be lesser than the previous case but still lot of applications and users can be disturbed, especially in an industrial setup. And still you do not know the real reason for the slowness or the malfunctioning as well. So what can you do? Go and examine the processors. Identify exactly which process is hanging. And most probably you will be identifying how and why. So you can find permanent solution. But the immediate solution is you can kill the troubling process or the few. It will solve the issue with minimum disturbance immediately. After identifying the correct process, you can right click on the process ID and click on ‘Kill process’ button. It will kill the selected process. You can kill processors using SQL statements and, using SQL commands you can kill all processors at once as well. Code for Killing Processes Individually USE master go DECLARE @dbname sysname SET @dbname = 'YourDB' EXECUTE ('KILL 53') Code for killing all Processes USE master go DECLARE @dbname sysname SET @dbname = 'YourDB' DECLARE @spid int SELECT @spid = min(spid) from master.dbo.sysprocesses where dbid = db_id(@dbname) WHILE @spid IS NOT NULL BEGIN EXECUTE ('KILL ' + @spid) SELECT @spid = min(spid) from master.dbo.sysprocesses where dbid = db_id(@dbname) AND spid @spid END
Views: 7626 Rohan Mehtha
MSSQL - Understanding Isolation Level By Example (Serializable)
 
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Example SQL Statements below used in the video, you can Copy and Paste for Transaction Isolation Level of Serializable, Read Committed, Read Uncommitted, Repeatable Read --===================================== -- Windows/Session #1 --===================================== SELECT @@SPID IF EXISTS (SELECT 1 FROM sys.tables WHERE name = 'SampleTable') DROP TABLE SampleTable CREATE TABLE [SampleTable] ( [Id] [int] IDENTITY(1,1) NOT NULL, [Name] [varchar](100) NULL, [Value] [varchar](100) NULL, [DateChanged] [datetime] DEFAULT(GETDATE()) NULL, CONSTRAINT [PK_SampleTable] PRIMARY KEY CLUSTERED ([Id] ASC) ) INSERT INTO SampleTable(Name, Value) SELECT 'Name1', 'Value1' UNION ALL SELECT 'Name2', 'Value2' UNION ALL SELECT 'Name3', 'Value3' SELECT * FROM SampleTable BEGIN TRAN INSERT INTO SampleTable(Name, Value) VALUES('Name4', 'Value4') --UPDATE SampleTable SET Name = Name + Name --UPDATE SampleTable SET Name = Name + Name WHERE Name = 'Name1' UPDATE SampleTable SET Name = Name + Name WHERE ID = 2 DELETE FROM SampleTable WHERE ID = 4 WAITFOR DELAY '00:0:10' COMMIT TRAN --===================================== -- Windows/Session #2 --===================================== --------------------------------------------------- -- This window/session is default READ COMMITTED -- --------------------------------------------------- SELECT @@SPID BEGIN TRAN SELECT * FROM SampleTable WAITFOR DELAY '00:00:10' SELECT * FROM SampleTable WAITFOR DELAY '00:00:10' SELECT * FROM SampleTable ROLLBACK SELECT b.name, c.name, a.* FROM sys.dm_tran_locks a INNER JOIN sys.databases b ON a.resource_database_id = database_id INNER JOIN sys.objects c ON a.resource_associated_entity_id = object_id --===================================== -- Windows/Session #3 --===================================== ----------------------------------------------------- -- This window/session is REPEATABLE READ -- ----------------------------------------------------- SELECT @@SPID SET TRANSACTION ISOLATION LEVEL REPEATABLE READ BEGIN TRAN SELECT * FROM SampleTable WAITFOR DELAY '00:00:10' SELECT * FROM SampleTable WAITFOR DELAY '00:00:10' SELECT * FROM SampleTable COMMIT TRAN --===================================== -- Windows/Session #4 --===================================== ----------------------------------------------------- -- This window/session is SERIALIZABLE -- ----------------------------------------------------- SELECT @@SPID SET TRANSACTION ISOLATION LEVEL SERIALIZABLE BEGIN TRAN SELECT * FROM SampleTable WAITFOR DELAY '00:00:10' SELECT * FROM SampleTable WAITFOR DELAY '00:00:10' SELECT * FROM SampleTable COMMIT TRAN
Views: 14267 CodeCowboyOrg
Oracle database scripts to save time and effort on architecture (oracle tutorials)
 
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Oracle database scripts to save time and effort on architecture (oracle tutorials) Sid, SPID, serial#, User program detail, Recent SQL, Wait Event, p1, p2, p3, Session Statistics Buy this book: https://www.amazon.in/Oracle-Apps-DBA-Core-Scripts-ebook/dp/B07F45DJR8/ref=sr_1_1?ie=UTF8&qid=1530441642&sr=8-1&keywords=apps+dba+script
Views: 72 product truths
Timmy Trumpet | Tomorrowland Belgium 2018
 
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Dive into The Story of Planaxis... Live Today, Love Tomorrow, Unite Forever,... www.tomorrowland.com
Views: 8080620 Tomorrowland
Difference between blocking and deadlocking
 
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deadlock vs blocking sql server In this video we will discuss the difference between blocking and deadlocking. This is one of the common SQL Server interview question. Let us understand the difference with an example. SQL Script to create the tables and populate them with test data Create table TableA ( Id int identity primary key, Name nvarchar(50) ) Go Insert into TableA values ('Mark') Go Create table TableB ( Id int identity primary key, Name nvarchar(50) ) Go Insert into TableB values ('Mary') Go Blocking : Occurs if a transaction tries to acquire an incompatible lock on a resource that another transaction has already locked. The blocked transaction remains blocked until the blocking transaction releases the lock. Example : Open 2 instances of SQL Server Management studio. From the first window execute Transaction 1 code and from the second window execute Transaction 2 code. Notice that Transaction 2 is blocked by Transaction 1. Transaction 2 is allowed to move forward only when Transaction 1 completes. --Transaction 1 Begin Tran Update TableA set Name='Mark Transaction 1' where Id = 1 Waitfor Delay '00:00:10' Commit Transaction --Transaction 2 Begin Tran Update TableA set Name='Mark Transaction 2' where Id = 1 Commit Transaction Deadlock : Occurs when two or more transactions have a resource locked, and each transaction requests a lock on the resource that another transaction has already locked. Neither of the transactions here can move forward, as each one is waiting for the other to release the lock. So in this case, SQL Server intervenes and ends the deadlock by cancelling one of the transactions, so the other transaction can move forward. Example : Open 2 instances of SQL Server Management studio. From the first window execute Transaction 1 code and from the second window execute Transaction 2 code. Notice that there is a deadlock between Transaction 1 and Transaction 2. -- Transaction 1 Begin Tran Update TableA Set Name = 'Mark Transaction 1' where Id = 1 -- From Transaction 2 window execute the first update statement Update TableB Set Name = 'Mary Transaction 1' where Id = 1 -- From Transaction 2 window execute the second update statement Commit Transaction -- Transaction 2 Begin Tran Update TableB Set Name = 'Mark Transaction 2' where Id = 1 -- From Transaction 1 window execute the second update statement Update TableA Set Name = 'Mary Transaction 2' where Id = 1 -- After a few seconds notice that one of the transactions complete -- successfully while the other transaction is made the deadlock victim Commit Transaction Link for all dot net and sql server video tutorial playlists https://www.youtube.com/user/kudvenkat/playlists?sort=dd&view=1 Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/difference-between-blocking-and.html
Views: 78980 kudvenkat
How to Get locked Objects in SQL Server
 
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Click here to Subscribe to IT PORT Channel : https://www.youtube.com/channel/UCMjmoppveJ3mwspLKXYbVlg Generally, There are two ways to get what are the objects are Locked. First way with SP_LOCK, We can get the Locked Object details in a Particular Session Or SQL Server Engine. Second way is Used with DMV, Sys.dm_trans_lock it returns the Locked Objects with Some more data's when compared to SP_LOCK. Both are explained with Simplest Example in this Video. To Get Locked Objects ----------------------------------- Select S2.host_name, S1.Resource_type, (Case when S1.resource_type IN ('RID', 'PAGE') then s5.name when S1.resource_type IN ('DATABASE') then s6.name else S4.Name end) Name, S1.resource_associated_entity_id, S1.request_mode, S1.request_type, S1.request_status, S1.request_session_id, ISNULL(S3.rows , 0) Rows From Sys.dm_tran_locks S1 Inner join Sys.dm_exec_sessions S2 on S1.request_session_id = S2.session_id left join sys.partitions S3 on S1.resource_associated_entity_id = S3.partition_id left join sys.objects s5 on s3.object_id = S5.object_id left join sys.objects S4 on (case when S1.resource_type = 'OBJECT' THEN S1.resource_associated_entity_id else null End) = S4.object_id left join sys.sysdatabases s6 on S1.resource_database_id = s6.dbid Where S1.resource_database_id = DB_ID() With Requested SQL Server Statement ------------------------------------------------------------- Select S1.*, S2.text From sys.sysprocesses S1 cross apply sys.dm_exec_sql_text (Sql_handle) S2 Where spID = SessionID
Views: 324 IT Port
27c3: Techniken zur Identifizierung von Netzwerk-Protokollen (de)
 
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Speaker: Florian Adamsky The presentation will demonstrate techniques that can identify network protocols, which are located in Layer 7 of the OSI model. All the techniques - including deep packet inspection (DPI) - are described technically and assessed critically. The focus of the talk is on the SPID algorithm, the Hjelmvik and John developed. This algorithm inspects the network protocols with statistical characteristics. The results of statistical analysis provide information on how to improve Protocol Obfuscation in the future to ensure that protocols are detected. On the following techniques for the identification of network protocols on the input of content: port numbers, deep packet inspection, machine learning algorithms and the hybrid approach SPID. All techniques must be weighed according to the following requirements. First, what protocols are detected in near real time. Second, a robust and reliable detection of possible protocols to be possible. And Third, the technology to run low-power and low-cost hardware. After considering the technical details of the SPID algorithm explained and illuminated selected statistical characteristics. These form the basis of the following to improve Protocol Obfuscation. Finally, different evaluation results are presented. (via google translate) For more information visit:http://bit.ly/27c3_information To download the video visit: http://bit.ly/27c3_videos
Views: 164 Christiaan008
SQL server 100% CPU usage fix
 
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This issue is very common and commonly faced by DBA, developers and server management team on production server i.e. SQL server leads into 100% CPU usage and also start consuming all available memory. Now most of the time you have seen technical people restarting sql services, or killing long running processes and even restarting complete server, and they can avoid this situation. Before starting any thing I would like to discuss a common myth people have that this is happening because of long running queries only. Which is not all ways true, some times: Longer running query can be problem Query having maximum worker time are also problem Query execution count can also cause problem For script check below link: http://www.techsapphire.in/index/sql_server_100_cpu_usage_fix/0-166
Views: 92983 techsapphire
Accidental DBA - Don't Let Your Database Be a Black Box
 
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Learn more about the SolarWinds THWACK community here http://bit.ly/TC2016_AccidentalDBA. To many users (and even some SysAdmins) a database is a black box. Queries go in, and data comes out. But, many new (or accidental) DBAs may lack the advanced skills necessary for critical performance tuning and troubleshooting, which will keep the users (and SysAdmins) happy. This session helps everyone to understand what is happening inside of the black box, how to diagnose performance issues, and what actions you can take to fix common database performance problems. Resources: DBA Survivor Guide: Your First 100 Days http://cdn.swcdn.net/creative/v14.9/pdf/ebook/DBA%20Survivor%20Guide%20First%20100%20Days_ebook_Nov2015.pdf Seven Signs your Database Server is Lying to You http://www.solarwinds.com/resources/videos/seven-signs-database-server-lying-to-you.html Connect with SolarWinds: thwack Community: http://thwack.solarwinds.com/ Facebook: https://www.facebook.com/SolarWinds Twitter: https://twitter.com/solarwinds LinkedIn: http://www.linkedin.com/company/solarwinds Instagram: http://instagram.com/solarwindsinc/ Flickr: http://www.flickr.com/photos/solarwinds_inc/
Views: 345 solarwindsinc
SQL Server 2012 tutorial 87: How to create, filter, and run a trace.
 
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How to create, filter, and run a trace using SQL Server Profiler. For more info, or a copy of any of the scripts used in any of my tutorials, please email me at [email protected]
Views: 6230 Johnny Deluca
Exclusive - Locks in SQL Server - Part 5
 
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Click here to Subscribe to IT PORT Channel : https://www.youtube.com/channel/UCMjmoppveJ3mwspLKXYbVlg Exclusive (X) locks prevent access to a resource by concurrent transactions. With an exclusive (X) lock, no other transactions can modify data Repeatable read and Higher Isolation level transactions can’t read that locked data and Rest of the levels can read. No Lock hints Can read this data. Isolation Level - https://youtu.be/ESET4zuNLoM Script for Active_Locks Function --------------------------------------------------- Create Function Active_locks () returns table return select Top 10000000 case dtl.request_session_id when -2 then 'orphaned distributed transaction' when -3 then 'deferred recovery transaction' else dtl.request_session_id end as spid, db_name(dtl.resource_database_id) as databasename, so.name as lockedobjectname, dtl.resource_type as lockedresource, dtl.request_mode as locktype, es.login_name as loginname, es.host_name as hostname, case tst.is_user_transaction when 0 then 'system transaction' when 1 then 'user transaction' end as user_or_system_transaction, at.name as transactionname, dtl.request_status from sys.dm_tran_locks dtl join sys.partitions sp on sp.hobt_id = dtl.resource_associated_entity_id join sys.objects so on so.object_id = sp.object_id join sys.dm_exec_sessions es on es.session_id = dtl.request_session_id join sys.dm_tran_session_transactions tst on es.session_id = tst.session_id join sys.dm_tran_active_transactions at on tst.transaction_id = at.transaction_id join sys.dm_exec_connections ec on ec.session_id = es.session_id cross apply sys.dm_exec_sql_text(ec.most_recent_sql_handle) as st where resource_database_id = db_id() order by dtl.request_session_id
Views: 358 IT Port
Shared - Locks in SQL Server - Part 3 Tamil
 
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Click here to Subscribe to IT PORT Channel : https://www.youtube.com/channel/UCMjmoppveJ3mwspLKXYbVlg Shared (S) locks allow concurrent transactions to read (SELECT) a resource under pessimistic concurrency control. No other transactions can modify the data while shared (S) locks exist on the resource. Shared (S) locks on a resource are released as soon as the read operation completes, unless the transaction isolation level is set to repeatable read or higher, or a locking hint is used to retain the shared (S) locks for the duration of the transaction. Isolation Level - https://youtu.be/ESET4zuNLoM Script for Active_Locks Function --------------------------------------------------- Create Function Active_locks () returns table return select Top 10000000 case dtl.request_session_id when -2 then 'orphaned distributed transaction' when -3 then 'deferred recovery transaction' else dtl.request_session_id end as spid, db_name(dtl.resource_database_id) as databasename, so.name as lockedobjectname, dtl.resource_type as lockedresource, dtl.request_mode as locktype, es.login_name as loginname, es.host_name as hostname, case tst.is_user_transaction when 0 then 'system transaction' when 1 then 'user transaction' end as user_or_system_transaction, at.name as transactionname, dtl.request_status from sys.dm_tran_locks dtl join sys.partitions sp on sp.hobt_id = dtl.resource_associated_entity_id join sys.objects so on so.object_id = sp.object_id join sys.dm_exec_sessions es on es.session_id = dtl.request_session_id join sys.dm_tran_session_transactions tst on es.session_id = tst.session_id join sys.dm_tran_active_transactions at on tst.transaction_id = at.transaction_id join sys.dm_exec_connections ec on ec.session_id = es.session_id cross apply sys.dm_exec_sql_text(ec.most_recent_sql_handle) as st where resource_database_id = db_id() order by dtl.request_session_id
Views: 168 IT Port
JMeter - How To Login Into A Web Application
 
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In this screencast, learn how to quickly create a JMeter script that can log into your website. Brought to you by http://BlazeMeter.com - JMeter in the cloud with real time reporting and more.
Views: 291245 JMeterTutorial
Comprendre l'escalade de verrous dans SQL Server
 
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Le verrouillage est un élément essentiel de la gestion des transactions dans SQL Server. Il garantit l’isolation de la transaction et la protection des données lors des accès concurrent. Dans cette vidéo, j’aborde le verrouillage des données sous un aspect précis : l’escalade des verrous. Lorsque le moteur de stockage de SQL Server doit poser beaucoup de verrous, il escalade le verrouillage sur les structures contenantes, les pages et la table elle-même. Nous voyons pratiquement comment SQL Server escalade les verrous. Suivez la série des astuces SQL Server. Deux astuces par semaine. Par Rudi Bruchez https://www.linkedin.com/in/rudibruchez/ www.babaluga.com
Views: 140 Rudi Bruchez
502 Proxy Error The proxy server received an invalid response from an upstream server
 
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502 Proxy Error - The proxy server received an invalid response from an upstream server. The proxy server could not handle the request. Reason: Error reading from remote server. Web server: Apache/2.2.15 (Oracle) When i try to load the Webpage URL (URI) which ends with .ece , I found the error. What is .ece format webpage: Web page dynamically generated by the Escenic Content Engine, an advanced platform for Web publishing and content management; typically contains server-side code that is parsed by the Web server, which generates HTML for the Web page.
Views: 38886 Troubleshooting errors
HERO GLAMOUR VS SUPER SPLENDOR 2018
 
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in this video I have given a detailed comparison between the newly launched Hero Super Splendor 2018 model and the new hero glamour 2018 model. I have described a hell lot of points regarding these two bikes which includes the handling, comfortable factor of the seat, also this includes the engine performance and the styling ,like the looks and the additional LED lightings .I have also given a comparison of the price to value for money that this bike offers. so basically this is a detailed comparison you won't find on any other YouTube video.
Views: 285065 BIKEMANIAC PK
Introduction to SP3D Training Video By MultisoftSystems in delhi,Noida
 
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Working efficiently with a software is possible only if one knows the software basics. The Introduction to SP3D teaser of SP3D course conducted at Multisoft provides insight to the actual training. In this sample video, you become acquainted with concepts like session files, other products that can be integrated with SP3D software and Generic System.
Views: 164 multisoft ncrnoida