sql deadlock error

. sysprocesses a Join (Select blocked from master. sysprocesses GROUP by blocked) b on a.spid=b.blocked where a.blocked=0UNION ALLSelect ' |_ victim _> ',Spid,kpid,blocked,dbid,uid,loginame,cpu,login_time,open_tran,Status,hostname,program_name,hostprocess,nt_domain,net_address,S1=blocked,s2=1From Master. sysprocesses a where blocked) A ORDER by s1,s2Select @[email protected] @rowcount, @i=1If @count =0 and @show_spid_if_nolock =1BeginInsert #tSelect flag = ' normal process ',Spid,kpid,blocked,db

The use of SQL Server as a database application system, will not be able to sometimes create a deadlock, after the deadlock, the maintenance personnel or developers will mostly only through the sp_who to find the deadlock process, and then killed with Sp_kill. With Sp_who_lock This stored procedure, it is easy to know

Causes and resolutions of deadlock in SQL Server 2006-07-18 05:12:10Category: SQL ServerIn fact, the deepest cause of all deadlocks is one: resource competitionPerformance One:A User A accesses table A (locks up table A), then accesses table B, another user B accesses table B (locked table B), and then attempts to access table A, when user a because User B has lo

Read the online a lot about the deadlock of the blog, we usually introduce the principle of the deadlock, I also write a detailed analysis. Of course, it's about SQL Server's deadlock.Fetching deadlock events using SQL Profiler2. Select tab: Event Selection, tick show all ev

SQL Server deadlock makes the problem that we often encounter, the deadlock of database operation is unavoidable, this article does not intend to discuss how deadlocks are produced, the focus is to resolve deadlocks. Hopefully it will help you learn about the deadlock in SQL

creating a transaction. Solution to table lock in this article. In fact, not only will the table be locked as described above, but there are also many scenarios that cause a deadlock in the Table. Unlocking is actually very simple. The following example is used to explain: 1. first create a table for testing: Create table Test (tid int identity (1, 1 )) 2. Execute the following SQL statement to lock

Tags: io os sp data on CTI Code BS ASRecently in a large-scale project, because data design uses a discrete database design to facilitate requirements change and user-defined process elements, because the user-defined features, data integrity by code constraints become less realistic, can only rely on the relationship between the table constraints, resulting in data operations often produce X (exclusive) lock, Severely affect data performance.The most straightforward solution to a database

1. Create the storage process sp_killlock Create proc sp_killlock @ Kill_lock_spid bit = 1, -- whether to kill the deadlock process; 1: Kill; 0: only show @ Show_spid_if_nolock bit = 1 -- if there is no deadlock in the process, whether the normal process information is displayed, 1 is displayed, 0 is not displayed As Declare @ count int, @ s nvarchar (1000), @ I int Select id = identity (INT, 1,

characteristics of the mode of operation. Trace flags are in the server Remains enabled until it is disabled by executing the DBCC traceoff statement. In the issue of DBCC Traceon Statement, a new connection to the server does not see any trace flags. Once the statement is issued, the connection can see the service All trace flags that are currently enabled in the device, even if they are enabled by another connection. Trace flag Trace flags are used to temporarily set specific characteristics

Mysql uses the kill command to solve the deadlock problem (killing an SQL statement being executed) When using mysql to run certain statements, the deadlock is caused by a large amount of data, which is not reflected. At this time, you need to kill a query statement that is consuming resources. The syntax format of the kill command is as follows: Mysql uses the

Query deadlock Process Statement Select request_session_id spid, object_name (resource_associated_entity_id) tablename from sys.dm _tran_locks where resource_type= ' OBJECT ' Kill the deadlock process statement Kill spid Let's share a section about SQL Server detection deadlock; kill loc

SYS. sysprocesses is an important system view. It is mainly used to locate and solve SQL Server blocking and deadlock. Msdn: contains information about processes running on an SQL server instance. These processes can be client processes or system processes. Main fields in the View: 1. spid: SQL servr

Label:The use of SQL Server as a database application system, will not be able to sometimes create a deadlock, after the deadlock, the maintenance personnel or developers will mostly only through the sp_who to find the deadlock process, and then killed with Sp_kill. With Sp_who_lock This stored procedure, it is easy to

A deadlock occurs when the data table is manipulated in PL/SQL and is unresponsive for a long time, and when editing data in a table, there is a "record is locked by another user".Below, a brief description of the solution:Step1.pl/sql View Lock:Select T2.username, T2.sid, T2.serial#,t2.logon_timeFrom V$locked_object t1,v$session T2where t1.session_id = T2.sid[Or

Label:Write a stored procedure a few days ago, the stored procedure used a transaction, and then I put some code comments out to debug the wrong, suddenly found a table is locked, the original is the code to create a transaction forget to comment out. This table locks the workaround. In fact, not only the situation described above will lock the table, there are many kinds of scenes will make the table life and Death lock, unlocking is actually very simple, the following with an example to explai

In fact, not only will the table be locked as described above, but there are also many scenarios that will cause a deadlock in the Table. Unlocking is actually very simple. The following example is used to explain:1. First create a test table:Copy codeThe Code is as follows:Create table Test(Tid int identity (1, 1)) 2. Execute the following SQL statement to lock the table:Copy codeThe Code is as follows:SEL

I wrote a stored procedure the other day and used transactions in the stored procedure. Later I commented out some code for debugging and found that a table was locked, I forgot to comment out the code for creating a transaction. Solution to table lock in this article. I wrote a stored procedure the other day and used transactions in the stored procedure. Later I commented out some code for debugging and found that a table was locked, I forgot to comment out the code for creating a transaction.

Pl/SQL deadlock: record is locked by another user due to a problem, I found a solution in a blog. After a try, I found the solution feasible! Www.2cto.com is afraid of poor memory! Also as your own search direction 1. PL/SQL query locks: select t2.username, t2.sid, t2.serial #, t2.logon _ timefrom v $ locked_object t1, v $ session t2where t1.session _ id = t2.sid

Select T.username,count (*) from v$session T GROUP by T.username //Find the sql_id value that a user is executing based on the user group session Select * From V$session t where T.username = ' BUDGET ' and t.sql_id are NOT NULL //lookup corresponding SQL_ID's corresponding SQL statement select M.sql_text from V$session T, V$sqlarea m where t.username = ' BUDGET ' and t.sql_id = m.sql_id // SELECT * from V$sqlarea t where T. sql_id = ' G92sy7kwt6mrq '

In fact, not only the situation described above will lock the table, there are many kinds of scenes that will put the table to lock the life and death, unlock is actually very simple, the following an example to explain: 1 Create a test table first: Copy Code code as follows: CREATE TABLE Test ( TID INT IDENTITY (1,1) ) 2 Execute the following SQL statement to lock the table: Copy Code code as follows: SELECT * from Test