如何清空所有数据库中所有表里的所有数据？

用游标删除，写个列子，aaaa为定义的游标，在要删除的数据库中执行就会清空所有表
declare aaaa cursor
for select * from sysobjects where type = \'u\'
declare @tbname varchar (100)
open aaaa
FETCH NEXT FROM AAAA INTO @TBNAME 
WHILE (FETCH_STATUS <> -1)
BEGIN 
    EXEC([email=]\'DELETE\'+@TBNAME[/email])
     
    FETCH NEXT FROM AAAA INTO @name
END
CLOSE AAAA
DEALLOCATE AAAA 




第二个方法




if exists (select * from sysobjects where type=\'P\' and name=N\'P_DeleteAllData\' )
    drop procedure P_DeleteAllData
go

CREATE PROCEDURE P_DeleteAllData
as
    EXEC sp_MSForEachTable \'ALTER TABLE ? NOCHECK CONSTRAINT ALL\' --禁用约束
    EXEC sp_MSForEachTable \'ALTER TABLE ? DISABLE TRIGGER ALL\' --禁用触发器
    EXEC sp_MSForEachTable \'DELETE FROM ?\' --删除所有表中的数据
    EXEC sp_MSForEachTable \'ALTER TABLE ? CHECK CONSTRAINT ALL\' --启用约束
    EXEC sp_MSForEachTable \'ALTER TABLE ? ENABLE TRIGGER ALL\' --启用触发器
go

--执行存储过程
--exec P_DeleteAllData --执行