Which commands provide definitions for creating table structure, deleting relations, and modifying relation schemas.

(a)

DDL

(b)

DML

(c)

DCL

(d)

DQL

Which command lets to change the structure of the table?

(a)

SELECT

(b)

ORDER BY

(c)

MODIFY

(d)

ALTER

The command to delete a table including the structure is

(a)

DROP

(b)

DELETE

(c)

DELETE ALL

(d)

ALTER TABLE

Queries can be generated using

(a)

SELECT

(b)

ORDER BY

(c)

MODIFY

(d)

ALTER

The clause used to sort data in a database

(a)

SORT BY

(b)

ORDER BY

(c)

GROUP BY

(d)

SELECT