模拟死锁及案例分析

草稿箱二十篇随笔没有发布，零零散散记录着曾经以为还不错的知识点。稍作整理发布，方便以后查看。2015-11-26 18:04 整理，未发布

1、模拟死锁

首先创建测试数据，然后开启必要的跟踪，最后执行两个语句模拟死锁。

1.1、创建测试数据

创建测试数据表、创建索引

--hobtid
SELECT OBJECT_NAME(p.object_id) AS TableName,
i.name AS IndexName
FROM sys.partitions AS p
INNER JOIN sys.indexes AS i ON p.object_id = i.object_id
AND p.index_id = i.index_id
WHERE p.hobt_id = 72057594040090624
--associatedObjectId
SELECT OBJECT_NAME(p.object_id) AS TableName,
i.name AS IndexName
FROM sys.partitions AS p
INNER JOIN sys.indexes AS i ON p.object_id = i.object_id
AND p.index_id = i.index_id
WHERE p.partition_id = 72057594040025088

--case when type = 1|3 then container_id = sys.partitions.hobt_id
--case when type = 2 then container_id = sys.partitions.partition_id
SELECT * FROM sys.allocation_units WHERE container_id=72057594040090624
SELECT * FROM sys.allocation_units WHERE container_id=72057594040025088

SELECT %%lockres%% AS keyhashvalue,* FROM testklup WHERE %%lockres%% ='(8194443284a0)'

View Code

3、Deadlocks-Example

SQL Server上的一个奇怪的Deadlock及其分析方法：https://blogs.msdn.microsoft.com/apgcdsd/2012/02/27/sql-serverdeadlock/
SQL Server Deadlocks by Example：https://www.simple-talk.com/sql/performance/sql-server-deadlocks-by-example/