Which statement is used to remove a column named D from the relation R?
a. ALTER TABLE R DROP COLUMN D;
b. ALTER TABLE R DROP COLUMN D [DataType];
c. ALTER TABLE R DELETE COLUMN D;
d. ALTER TABLE R DELETE COLUMN D [DataType];
Answer: A
Which statement is used to remove a column named D from the relation R?
a. ALTER TABLE R DROP COLUMN D;
b. ALTER TABLE R DROP COLUMN D [DataType];
c. ALTER TABLE R DELETE COLUMN D;
d. ALTER TABLE R DELETE COLUMN D [DataType];
Answer: A