摘要: 1.select deptno,min(sal) from emp where job_id='manager' group by deptno; 2.select * from empwhere hiredate=last_day(hiredate); 3.select initcap(ename 阅读全文
posted @ 2020-05-07 16:45 Stary_tx 阅读(119) 评论(0) 推荐(0) 编辑