sql删除数据库中所有表与数据语句

--变量@tablename保存表名
declare @tablename nvarchar(100)

--将用户表全部保存到临时表#tablename中
SELECT [name] into #tablename FROM sysobjects
WHERE type = 'U';

--当#tablename有数据时
while(select count(1) from #tablename)>0
begin
--从#tablename中取第一条
select top 1 @tablename=[name] from #tablename;
--进行表删除操作,表名为变量,所以此处用到动态sql
exec('drop table '+@tablename);
--将此表名记录从#tablename中删除
delete from #tablename where [name]=@tablename;
end

--最后删除临时表#tablename

declare @trun_name varchar(50)
declare name_cursor cursor for
select 'truncate table ' + name from sysobjects where xtype='U' and status > 0
open name_cursor
fetch next from name_cursor into @trun_name
while @@FETCH_STATUS = 0
begin
exec (@trun_name)
print 'truncated table ' + @trun_name
fetch next from name_cursor into @trun_name
end
close name_cursor
deallocate name_cursor

exec sp_msforeachtable "truncate table ?"