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Sql Server 删除所有表

2014-03-09 01:21  jiangys  阅读(25845)  评论(4编辑  收藏  举报
如果由于外键约束删除table失败,则先删除所有约束:

--/第1步**********删除所有表的外键约束*************************/

DECLARE c1 cursor for
select \'alter table [\'+ object_name(parent_obj) + \'] drop constraint [\'+name+\']; \'
from sysobjects
where xtype = \'F\'
open c1
declare @c1 varchar(8000)
fetch next from c1 into @c1
while(@@fetch_status=0)
begin
exec(@c1)
fetch next from c1 into @c1
end
close c1
deallocate c1

--/第2步**********删除所有表*************************/

use 数据库名(是要删除表的所在的那个数据库的名称)
GO
declare @sql varchar(8000)
while (select count(*) from sysobjects where type=\'U\')>0
begin
SELECT @sql=\'drop table \' + name
FROM sysobjects
WHERE (type = \'U\')
ORDER BY \'drop table \' + name
exec(@sql) 
end

--删除所有的存储过程同理可得,但不需要走第一步,只需将第2步的代码的where type=\'U\' 改成 where type=\'P\',drop table 改成 drop Procedure。

如删除数据库izhanshi:

--/第1步**********删除所有表的外键约束*************************/

DECLARE c1 cursor for
select \'alter table [\'+ object_name(parent_obj) + \'] drop constraint [\'+name+\']; \'
from sysobjects
where xtype = \'F\'
open c1
declare @c1 varchar(8000)
fetch next from c1 into @c1
while(@@fetch_status=0)
begin
exec(@c1)
fetch next from c1 into @c1
end
close c1
deallocate c1

--/第2步**********删除所有表*************************/

use izhanshi
GO
declare @sql varchar(8000)
while (select count(*) from sysobjects where type=\'U\')>0
begin
SELECT @sql=\'drop table \' + name
FROM sysobjects
WHERE (type = \'U\')
ORDER BY \'drop table \' + name
exec(@sql) 
end
删除数据库izhanshi

 

 

 

 

 

 

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