摘要: 1.单表简单查询; select * from scott.emp 2.创建表: create table score( cid int primary key, html number, js number, ajax number ) create table java1227( jid num 阅读全文
posted @ 2020-06-08 14:44 丿狂奔的蜗牛 阅读(262) 评论(0) 推荐(0)