Mysql 8.0 OCP认证考试原题题库整理(CUUG内部资料)-第11题Choose the best answer.You have upgraded the MySQL binaries from 5.7.28 to 8.0.18 by using an in-place upgrade.Examine the message sequence generated during the first start of MySQL 8.0.18:Which step or set of steps will r...【阅读全文】
--查询-- 查询所有列 --select * from 表名 --一定条件查询(where) select * from students where id >= 5; -- 查询制定列 select name,age from students; -- 使用as给字段起别名 select name as '姓名', age as '年纪' from students;...【阅读全文】