sql deadlock error

Tags: DDR amp ESC sel EPO system datetime Order AddressViewing with extended events for dynamic viewsSELECT xed.value (' @timestamp ', ' datetime ') as Creation_date, xed.query ('. ') As Extend_event from ( SELECT CAST ([Target_data] as XML) as Target_data from sys.dm_xe_session_ Targets as XT sys.dm_xe_sessions as xs on xs.address = xt.event_session_address WHERE Xs.name = N ' system_health ' and xt.target_name = n ' ring_buffer ' ) as Xml

1. First we need to determine which user is locked in which table. --Query Locked table Select request_session_id spid,object_name (resource_associated_entity_id) tablename A table that contains the SPID and tablename columns is returned after the query. Where the SPID is the process name and TableName is the table name. 2. Knowing which process has locked the table, you need to find the host that locked the table through the process. --Query host name exec sp_who2 ' xxx ' xxx

Label:"　　 This SQL job has been running every day well, I suddenly did not take effect? " Encounter this sudden problem, my heart is calm, things can not be inexplicable, because it is a SQL job problem, first need to view the job history sure enough a big x obvious don't want to continue to look at the wrong content: 　　executed as user NT Authority\Network SERVICE. The transaction (Process ID 51) is deadl

1 first create a test table:Copy the code code as follows:CREATE TABLE Test (TID INT IDENTITY)2 Execute the following SQL statement to lock the table:Copy the code code as follows:SELECT * from Test with (Tablockx)3 You can see which tables in the current library are deadlocked by using the following statement:Copy the code code as follows:SELECT request_session_id spid,object_name (resource_associated_entity_id) tableName from Sys.dm_tran_locks WHERE

Label:"SQL Server 2005 deadlock resolution Exploration" mentioned earlier, deadlock severity, an average of one deadlock per day, and a lot of data and ideas in resolving and handling SQL server2005 deadlocks, and then we used the following methods:1, change the database iso

Label:In today's article I want to demonstrate how missing indexes on tables in SQL Server cause deadlocks (deadlock). To prepare the test scenario, the following code creates 2 tables, and then 2 tables insert 4 records. 1 --Create a table without any indexes 2 CREATE TABLETable13 ( 4Column1INT, 5Column2INT 6 ) 7 GO 8 9 --Insert a few record Ten INSERT intoTable1VALUES(1,1) One INSERT intoTable1VALUES(

Tags: style blog http io using ar strong data SPTurning on deadlock monitoring in the database collects the deadlock conditions that occur in the database. There are 2 ways to open it:1 Turn on 1222 monitoringExecute SQL statement:DBCC Traceon (1222,-1);Then view the deadlock information in the system log.2 Start

four necessary conditions of the joint action produced, so according to the general idea, as long as can break one of them, can effectively avoid the production of deadlocks. The following are the processing that can be made for the four prerequisites: Allows concurrent access to resources. Allow resource deprivation for the process. The resources required for the process to be submitted once. The orderly allocation of resources, that is, access to resources in the

Using SQL Server as a database application system, can not avoid the sometimes deadlock, deadlock, maintenance personnel or developers will only through the sp_who to find the deadlock process, and then kill with Sp_kill. Using Sp_who_lock, this stored procedure makes it easy to know which process is deadlocked and whe

UseMasterDeclare @spid int, @bl int, @intCounter int, @intRowcount int, @intCountProperties int, @intTransactionCountOnEntry int Declare @tmp_lock_who Table(IDint Identity(1,1), spidsmallint, BLsmallint) IF @ @ERROR0 SELECT @ @ERROR Insert into @tmp_lock_who(SPID,BL)Select 0, blocked from(Select * fromSys.sysprocesseswhereBlocked>0) Awhere not exists (Select * from(Select * fromSy

Recently write a program often encounter deadlock victim, every time a face confused force. Study how to track down, write down the record. Build test data CREATE DATABASE testdb; GO USE testdb; CREATE TABLE table1 ( id INT IDENTITY PRIMARY KEY, student_name NVARCHAR(50) ) INSERT INTO table1 values ('James') INSERT INTO table1 values ('Andy') INSERT INTO table1 values ('Sal') INSERT INTO table1 values ('Helen') INSERT INTO table1

DECLARE @spid INT , @bl INT , @intTransactionCountOnEntry INT , @intRowcount INT , @intCountProperties INT , @intCounter INT CREATE TABLE#tmp_lock_who (IDINT IDENTITY(1,1), spidSMALLINT, BLSMALLINT ) IF @ @ERROR 0 Print @ @ERROR INSERT into#tmp_lock_who (spid, BL)SELECT 0, blocked from(SELECT *

Testklup Select 2,2,200, ' BBB 'Insert INTO Testklup select 3,3,300, ' CCC ' Open Session 1 analog HF update operation ----Analog High Frequency update operationDECLARE @i intSet @i=100While 1=1BeginUpdate Testklup Set Cont1=@iwhere Clskey=1Set @i=@i+1EndOpen Session 2 analog high-frequency select operation ----Analog High Frequency Select operationDeclare @cont2 char (3000)While 1=1BeginSelect @cont2 =cont2 from Testklup where Nlskey=1End When session 2 is open for a short period of time,

(' (event[@name = "Xml_deadlock_report"]/@timestamp) [1] ', ' datetime ') execution_time,xml_data.value (' (Event/data/value) [1] ', ' varchar (max) ') Queryfrom (select Object_name as Event, CONVERT (XML, Event_data) as Xml_datafrom sys.fn_xe_file_target_ Read_file (' C:\temp\deadlock*.xel ', ' C:\temp\deadlock*.xem ', NULL, NULL)) v ORDER by Execution_time--If you want the session to stop capturing event

Label:Many times, deadlocks are requested by two or more sessions to hold the other session of the lock while holding other session, but there are some special deadlock only by a single session lock triggered, today saw a related article, transported to share with you! The code that caused the deadlock: Execution Environment SQL SERVER 2012 (11.0.5058) BEGIN TRAN

Deadlocks and blockages have always been the focus of performance test execution.Here are the monitored SQL Server databases I've compiled, whether there are deadlocks or blocked SQL statements during the performance test, and it's relatively ready to leave.--Number of deadlocks per secondSELECT * from Sys.dm_os_performance_counters WHERE counter_name like ' number of deadlocksc% ';--Query Current blockingW

Tags:whileentrycas loops serve Blocking selectobjecttran Use [master] GO/****** Object: storedprocedure [dbo]. [Sp_who_lock] script date:07/30/2015 13:52:38 ******/SET ansi_nulls on Go SET quoted_identifier on Go ALTER procedure [dbo]. [Sp_who_lock] as BEGIN declare @spid int, @bl int, @intTransactionCountOnEntry int, NBS P @intRowcount int, @intCountProperties int, @intCount ER int CREATE TABLE #tmp_lock_who (ID int identity (SMALLINT,BL), spid smallint) IF @ @

. status nchar (+) Process ID status. The possible values are: dormant= SQL Server is resetting the session. The running= The session is running one or more batches. When multiple Active Result sets (MARS) is enabled, a session can run multiple batches. For more information, seeusing multiple Active Result sets (MARS). Background= The session is running a background task, such as

sp_lock, it is possible to get different results because new locks have taken place, and some of the old locks have been lifted. If you find that sp_lock returns a large number of results with the same SPID, it is likely that the process is undergoing large processing, and these locks may begin to prevent new transactions from occurring.When you find that a SPID acquires a large number of database locks, this will help determine what stored procedures or statements are running. To achieve this,

Label:Method One: With Cte_sid (Bsid, SID, sql_handle) As (SELECT blocking_session_id, session_id, Sql_handle From sys.dm_exec_requests WHERE blocking_session_id UNION All SELECT a.blocking_session_id, A.SESSION_ID, A.sql_handle From Sys.dm_exec_requests A JOIN cte_sid B on a.session_id = B.bsid ) SELECT C.bsid, C.sid, S.login_name, S.host_name, S.status, S.cpu_time, S.memory_usage, S.last_request_start_time, S.last_request_end_time, S.logical_reads, S.row_count, Q.text From Cte_sid C JOIN sys.