Sql Server 删除所有表

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