摘要: 1、不为空 Select * From table_name Where id'' Select * From table_name Where id!='' 2、为空 Select * From table_name Where id='' Select * From table_name Where ISNULL(id)... 阅读全文
posted @ 2018-01-18 10:02 随行-LV 阅读(54819) 评论(0) 推荐(3) 编辑