摘要: 基础查询 查询全部 select * from 表 where 条件; 查询指定列 select name, age from student as别名: select name as zName, age as zAge from student as zStudent distinct去重: s 阅读全文
posted @ 2024-07-17 17:44 这是啥!啥!啥 阅读(13) 评论(0) 推荐(0) 编辑