摘要: select * from bankinsert into bank values(10000)insert into bank values(20000)--打开一个事务begin tran--定义临时变量declare @num int = 0;update bank set balance=b... 阅读全文
posted @ 2014-10-30 21:42 hg一如既往 阅读(239) 评论(0) 推荐(0) 编辑