清空数据库表
最近在不断地清空数据库的表，人工操作起来稍显的麻烦了点，放上SQL语句，以备后用。
–/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*************************/
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