??????????????????????????????????????????????????????磺????￡??????????????????±???磺?????Log??????????????ж????????????????????????У????????????????????ü??ɡ?
???????sql server???????????ж???????????????????????????δ??????????????±???????磺?????Log???ж????·???Log_201512??????????????????????????????????????sql??????￡?
if not exists (select top 1 *
from sysobjects
where id = object_id('Log_201512')
and type = 'U') select * into Log_201512 from Log where 1=2