在SQL语句中，where子句控制select语句的入口关，having控制select语句的出口关（）

A.一条select 子句

B.一条 from 子句

C.一条 having 子句

D. 一条order by子句

A.SELECT

B.WHERE

C.GROUPBY

D.FROM

A.ORDERBY

B.GROUPBY

C.WHERE

D.DISTINCT

A.SELECT语句

B.UPDATE语句

C.DELETE语句

D.ALTER语句

A、SELECT

B、FROM

C、WHERE

D、GROUPBY

A.ALTER

B.UPDATE

C.SELECT

D.DELETE

A.WHERE

B.HAVING

C.GROUP BY

D.ORDER BY

A.SELECT子句

B.INTO子句

C.WHERE子句

D.FROM子句

A.select，from

B.select，group by

C.select，where

D.select，order by