存储过程：删除外键关联的三张表

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SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
-- =============================================
-- Author:		Dylan
-- Create date:      2010年
-- Description:	删除外键关联的三张表(从下往上删除)
-- =============================================
CREATE PROCEDURE 表名
@table1_Id int -- 第一张表的ID值
AS  
BEGIN  
    begin tran TranStart  -- 事务开始
    save tran FirstPoint  
	-- 先删除第三张表相关联的信息
	delete from table3 where table2_foreignId in
	(
		select table2_Id from ConfigSecondBranch where table2_foreignId in
		(
			select table1_Id from ConfigFirstBranch where  table1_Id = @table1_Id
		)
	)
	-- 再先删除第二张表相关联的信息
	delete from table2 where table2_foreignId in
	(
		select table1_Id from ConfigFirstBranch where table1_Id = @table1_Id
	)
	-- 最后先删除第一张表相关联的信息
	delete from table1 where table1_Id = @table1_Id
	-- 如果出错
    if @@ERROR <> 0  
    begin   
        rollback tran FirstPoint  -- 回滚
    end  
    commit tran TranStart
END 

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