sql批量操作数据库，删除表，删除数据库，删除存储过程，删除视图

--删除所有表的外键约束--
DECLARE c1 cursor for
select 'alter table ['+ object_name(parent_obj) + '] dropconstraint ['+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

--删除数据库中所有表--
declare @tname varchar(8000)
set @tname=''
select @tname=@tname + Name + ',' from sysobjects where xtype='U'
select @tname='drop table ' + left(@tname,len(@tname)-1)
exec(@tname)

--删除数据库中所有存储过程--
declare @tname varchar(8000)
set @tname=''
select @tname=@tname + Name + ',' from sysobjects where xtype='P'
select @tname='drop Procedure' + left(@tname,len(@tname)-1)
exec(@tname)

--删除数据库中所有视图--
declare @tname varchar(8000)
set @tname=''
select @tname=@tname + Name + ',' from sysobjects where xtype='V'
select @tname='drop View' + left(@tname,len(@tname)-1)
exec(@tname)