使用SQL检测死锁

IF EXISTS(SELECT name FROM sysobjects WHERE name=‘goods_sort‘ AND xtype=‘U‘)
    DROP TABLE dbo.goods_sort

--创建商品分类表
CREATE TABLE dbo.goods_sort(
    iSortID        int                NOT NULL
        CONSTRAINT PK_iSortID PRIMARY KEY
        IDENTITY(1001,1),
    sSortName    NVARCHAR(20)    NOT NULL
)
GO

INSERT INTO dbo.goods_sort VALUES(‘服饰‘)
INSERT INTO dbo.goods_sort VALUES(‘女包‘)
INSERT INTO dbo.goods_sort VALUES(‘鞋子‘)
INSERT INTO dbo.goods_sort VALUES(‘首饰‘)
INSERT INTO dbo.goods_sort VALUES(‘美容‘)
GO

IF EXISTS(SELECT name FROM sysobjects WHERE name=‘goods‘ AND xtype=‘U‘)
    DROP TABLE dbo.goods;

--创建商品表
CREATE TABLE dbo.goods(
    iID            int                NOT NULL
        CONSTRAINT PK_iID PRIMARY KEY
        IDENTITY(1,1),
    iGoodsID    varchar(20)        NOT NULL,
    sGoodsName    nvarchar(100)    NOT NULL,
    iGoodTotal    int                NOT NULL
        CONSTRAINT DF_iGoodTotal DEFAULT(0),
    iPrice        int                NOT NULL
        CONSTRAINT DF_iPrice DEFAULT(0),
    iPriceTotal    int                NOT NULL,
    iSortID        int                NOT NULL,
    tAddDate    smalldatetime    NOT NULL
        CONSTRAINT DF_tAddDate DEFAULT getdate()
)
GO

INSERT INTO dbo.goods
    (iGoodsID,sGoodsName,iGoodTotal,iPrice,iPriceTotal,iSortID)
    VALUES(‘YR6001‘,‘瘦身羽绒服‘,20,200,4000,1001)
INSERT INTO dbo.goods
    (iGoodsID,sGoodsName,iGoodTotal,iPrice,iPriceTotal,iSortID)
    VALUES(‘YR6002‘,‘加厚羽绒服‘,20,300,6000,1001)
INSERT INTO dbo.goods
    (iGoodsID,sGoodsName,iGoodTotal,iPrice,iPriceTotal,iSortID)
    VALUES(‘BB7001‘,‘小黄牛皮马鞍包‘,30,100,3000,1002)
INSERT INTO dbo.goods
    (iGoodsID,sGoodsName,iGoodTotal,iPrice,iPriceTotal,iSortID)
    VALUES(‘BB7002‘,‘十字绣流苏包‘,50,150,7500,1002)
GO

SET NOCOUNT ON;
SET XACT_ABORT ON;
GO

--使用TRY-CATCH，使代码发生错误也继续运行
BEGIN TRY
  BEGIN TRAN
    UPDATE dbo.goods_sort SET sSortName=‘女鞋‘ WHERE iSortID=1003;
    WAITFOR DELAY ‘00:00:05‘;
    UPDATE dbo.goods SET sGoodsName=‘胖子羽绒服‘ WHERE iID=2;
  COMMIT TRAN
END TRY

BEGIN CATCH
  IF (XACT_STATE()=-1)
    ROLLBACK TRAN;
  --ERROR_NUMBER()值为1205则表示发生了死锁
  IF (ERROR_NUMBER() = 1205)
    PRINT ‘事务1发生了死锁‘
    --写SQL Server日志或者返回错误给应用程序
END CATCH

SELECT iID,sGoodsName FROM dbo.goods WHERE iID=2;
SELECT iSortID,sSortName FROM dbo.goods_sort WHERE iSortID=1003;
GO 

SET NOCOUNT ON;
SET XACT_ABORT ON;
GO

--使用TRY-CATCH，使代码发生错误也继续运行
BEGIN TRY
  BEGIN TRAN
    UPDATE dbo.goods SET sGoodsName=‘瘦子羽绒服‘ WHERE iID=2;
    WAITFOR DELAY ‘00:00:05‘;
    UPDATE dbo.goods_sort SET sSortName=‘男鞋‘ WHERE iSortID=1003;
  COMMIT TRAN
END TRY

BEGIN CATCH
  IF (XACT_STATE()=-1)
    ROLLBACK TRAN;
  --ERROR_NUMBER()值为1205则表示发生了死锁
  IF (ERROR_NUMBER() = 1205)
    PRINT ‘事务2发生了死锁‘
    --写SQL Server日志或者返回错误给应用程序
END CATCH

SELECT iID,sGoodsName FROM dbo.goods WHERE iID=2;
SELECT iSortID,sSortName FROM dbo.goods_sort WHERE iSortID=1003;
GO