有时, 为了能够检测到死锁, 需要人为的创建一个死锁, 以验证检测工具到底是否正常动作, 以下代码可以让我们人为的创建一个死锁
创建检验数据
CREATE TABLE Lock1(C1 int default(0));
CREATE TABLE Lock2(C1 int default(0));
INSERT INTO Lock1 VALUES(1);
CREATE TABLE Lock2(C1 int default(0));
INSERT INTO Lock1 VALUES(1);
INSERT INTO Lock2 VALUES(1);
然后分别在SQL Server的两个窗口运行以下两块代码 (注: 必须在两个窗口中运行)
代码块1:
Begin Tran
Update Lock1 Set C1=C1+1;
WaitFor Delay '00:01:00';
SELECT * FROM Lock2
Update Lock1 Set C1=C1+1;
WaitFor Delay '00:01:00';
SELECT * FROM Lock2
Rollback Tran;
代码块2
Begin Tran
Update Lock2 Set C1=C1+1;
WaitFor Delay '00:01:00';
SELECT * FROM Lock1
Rollback Tran;
Update Lock2 Set C1=C1+1;
WaitFor Delay '00:01:00';
SELECT * FROM Lock1
Rollback Tran;
此代码转自http://kb.cnblogs.com/page/48541/