SQL死锁进程内容查询语句-编程知识

SQL死锁进程内容查询语句

1.方式1

SELECT   object_name(A.resource_associated_entity_id) as TABLENAME, A.request_session_id AS SPID,DB_NAME(B.dbid) AS DBName,B.blocked,B.dbid,B.program_name,B.waitresource,B.lastwaittype,B.loginame,B.hostname,B.login_time,B.last_batch--,B.*
FROM  sys.dm_tran_locks  A  ,sys.sysprocesses B
WHERE resource_type = 'OBJECT' AND request_session_id =B.spid  AND blocked >0

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2.方式2

 SELECT spid, blocked,sp.dbid, DB_NAME(sp.dbid) AS DBName, object_name(A.resource_associated_entity_id) as TABLENAME,program_name,waitresource,lastwaittype,sp.loginame,sp.hostname,a.[Text] AS [TextData],SUBSTRING (A. TEXT,sp.stmt_start / 2,(CASE WHEN sp.stmt_end = - 1 THEN DATALENGTH (A. TEXT) ELSE sp.stmt_end END - sp.stmt_start) / 2) AS [current_cmd] ,object_name(C.resource_associated_entity_id) as TABLENAMEFROM sys.sysprocesses AS sp OUTER APPLY sys.dm_exec_sql_text (sp.sql_handle) AS A ,sys.dm_tran_locks CWHERE spid > 50  AND blocked >0   AND request_session_id =spid AND resource_type = 'OBJECT' ORDER BY blocked DESC,DB_NAME(sp.dbid) ASC,a.[text];

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3.建立定时LOG记录，避免发生的时候无法抓取

--建立LOG表
CREATE TABLE A_LOCK_LOG		                       
(login_time  DATETIME ,last_batch  DATETIME,spid INT, blocked INT,TABLENAME  VARCHAR(6000),dbid  INT,DBName VARCHAR(6000),program_name VARCHAR(6000),waitresource VARCHAR(6000),lastwaittype VARCHAR(6000),loginame VARCHAR(6000),hostname VARCHAR(6000),TextData VARCHAR(6000),current_cmd VARCHAR(6000),CREATION_DATE		DATETIME	DEFAULT GETDATE()-- 创建时间(派令日期)
);

--建立定时作业的进行记录资料
INSERT INTO A_LOCK_LOG(login_time,last_batch,spid,blocked,TABLENAME,dbid,DBName,program_name,waitresource,lastwaittype,loginame,hostname,TextData,current_cmd)SELECT login_time,last_batch,spid, blocked,object_name(C.resource_associated_entity_id) as TABLENAME,sp.dbid, DB_NAME(sp.dbid) AS DBName, program_name,waitresource,lastwaittype,sp.loginame,sp.hostname,a.[Text] AS [TextData],SUBSTRING ( A. TEXT,sp.stmt_start / 2,(CASE WHEN sp.stmt_end = - 1 THEN DATALENGTH (A. TEXT) ELSE sp.stmt_end END - sp.stmt_start) / 2) AS [current_cmd] FROM sys.sysprocesses AS sp OUTER APPLY sys.dm_exec_sql_text (sp.sql_handle) AS A ,sys.dm_tran_locks CWHERE spid > 50  AND blocked >0   AND request_session_id =spid AND resource_type = 'OBJECT' ORDER BY blocked DESC,DB_NAME(sp.dbid) ASC,a.[text];

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4.模拟上锁机制

ALTER PROCEDURE [dbo].[Test]--@ERR_NO     INT              OUTPUT,@ERR_DESC   NVARCHAR(4000)   OUTPUTAS
BEGINSET TRANSACTION ISOLATION LEVEL SERIALIZABLE; -- 设置事务隔离级别为 SerializableBEGIN TRANSACTION;-- 锁定目标表SELECT * FROM 表名 WITH (TABLOCKX, HOLDLOCK); -- 使用 TABLOCKX 和 HOLDLOCK 提示锁定表，并保持锁定-- 模拟长期锁定WAITFOR DELAY '00:10:00'; -- 等待10分钟COMMIT;
END