统计每个部门中人数()


统计每个部门中人数()

A.SELECTSUM(ID)FROMEMPGROUPBYDEPTNO;

B.SELECTSUM(ID)FROMEMPORDERBYDEPTNO;

C.SELECTCOUNT(ID)FROMEMPORDERBYDEPTNO;

D.SELECTCOUNT(ID)FROMEMPGROUPBYDEPTNO;

正确答案:D


Tag:人数 部门 时间:2022-12-23 21:29:01