A.DELETE
B.INSERT
C.UPDATE
D.INSEATER

A.约束
B.规则
C.索引
D.视图

A.SELECT子句
B.INTO子句
C.FROM子句
D.WHERE子句

A.TOP
B.AS
C.DISTINCT
D.JOIN

A.CREATE VIEW
B.DROP VIEW
C.CREATE TABLE
D.CREATE RULE

A.WHERE AGE＞18AND AGE＜23
B.WHERE AGE＞＝18AND AGE＜23
C.WHERE AGE＞18AND AGE＜＝23
D.WHERE AGE＞＝18AND AGE＜＝23

A.WITH ENCRYPTION
B.WITH CHECK OPTION
C.VIEW METADATA
D.AS SQL语句

A.HAVING子句
B.GROUP BY子句
C.ORDER BY子句
D.WHERE子句

A.连接查询
B.内查询
C.自查询
D.子查询