A.REMOVE
B.CLEAR
C.DELETE
D.DROP

A.设置唯一键
B.设置外键
C.减少数据冗余
D.设置主键

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

A.like
B.against
C.match
D.regexp

A.CREATE
B.INSERT
C.SAVE
D.UPDATE

A.选取单表中字段子集的查询语句
B.选取多表中字段子集的查询语句
C.返回单表中数据子集的查询语言
D.嵌入到另一个查询语句之中的查询语句

A.insert
B.rollback
C.commit
D.savepoint

A.FOUND_ROWS
B.LAST_ROWS
C.ROW_COUNT
D.LAST_INSERT_ID

A.DELE TETABLE S
B.DELETE S
C.DROP S
D.DROP TABLE S

A.alter table emp remove addcolumn
B.alter table emp drop column addcolumn
C.alter table emp delete column addcolumn
D.alter table emp delete addcolumn

A.FULLTEXT
B.ENGINE
C.FROM
D.WHRER