BEGIN TRAN --開啓事務
update [dbo].[theTable] set name='李四' where id=1
select * from [dbo].[theTable]
--COMMIT TRAN -- 檢查數據是否正確,如果正確提交數據
--ROLLBACK TRAN -- 檢查數據是否正確,如果錯誤還原數據
--優化語句
delete from MyStudent where
studentid='1' and
studentname='1';