利用sql大量刪除表，預存程序。

最近用godaddy的空間，由於系統裡面的表多，一個個的刪除很麻煩，就網上搜集了一下解決方案。

給大家分享一下：

 

   1.大量刪除預存程序  declare @procName varchar(500)

      declare cur cursor

            for select [name] from sys.objects where type = 'p'

      open cur

      fetch next from cur into @procName

      while @@fetch_status = 0

      begin

            if @procName <> 'DeleteAllProcedures'

                  exec('drop procedure ' + @procName)

                  fetch next from cur into @procName

      end

      close cur

      deallocate cur
2，大量刪除外鍵

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
3.大量刪除表

DECLARE c2 cursor for
    select 'drop table ['+name +']; '
    from sysobjects
    where xtype = 'u'
open c2
declare @c2 varchar(8000)
fetch next from c2 into @c2
while(@@fetch_status=0)
    begin
        exec(@c2)
        fetch next from c2 into @c2
 end
close c2
deallocate c2
--批量清除表內容：

--1.禁用外鍵約束
DECLARE c1 cursor for
    select 'alter table ['+ object_name(parent_obj) + '] nocheck 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
--2.清除表內容
DECLARE c2 cursor for
    select 'truncate table ['+name +']; '
    from sysobjects
    where xtype = 'u'
open c2
declare @c2 varchar(8000)
fetch next from c2 into @c2
while(@@fetch_status=0)
    begin
        exec(@c2)
        fetch next from c2 into @c2
    end
close c2
deallocate c2
--3.啟用外鍵約束
DECLARE c1 cursor for
    select 'alter table ['+ object_name(parent_obj) + '] check 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