随笔分类 -  database

MySQL 必知必会
摘要：登录 C:\Program Files\MySQL\MySQL Server 5.7\bin>mysql -u admin -p Enter password: **** Server version: 5.7.29 distinct去重 select distinct vend_id from p 阅读全文
posted @ 2020-09-25 10:20 鹏懿如斯 阅读(219) 评论(0) 推荐(0)