摘要: 1,排序 a,单列排序:select * from table_name order by column_name DESC (注:order by 后不写默认asc升序,desc降序) b,多列排序:select * from table_name order by column_name1, c 阅读全文
posted @ 2020-05-08 15:42 hpliud 阅读(153) 评论(0) 推荐(0) 编辑