（)是位于用户与操作系统之间的一层数据管理软件。A DBB DBSC DBMSD Data

根据SQL标准，删除索引应该选用下面哪个语句?()

A DELETE INDEX

B DROP INDEX

C DELETE VIEW

D DROP VIEW

根据SQL标准，下面哪句语句能够找出年龄最小的同学?其中age为学生表student中的年龄字段，sno为学生的学号。()

A select max(age) from student

B select sno from student where age = max(age)

C select sno from student having age = max(age)

D select sno from student a where a.age<= (select min(b.age) from student b)

根据SQL标准，要删除表student中所有数据，但不将表student的定义一起删除，下面哪个语句可以适用?()

A delete from student

B delete all from student

C delete * from student

D drop table student

根据SQL标准，删除一个表，应该使用下面哪个语句?()

A DELETE TABLE

B DROP TABLE

C DELETE VIEW

D DROP DATABASE