A.DROP FROM student B.DELETE FROM student C.REMOVE FROM student D.KILL FROM student
A.UPDATE一次只能修改一列的值 B.UPDATE只能修改不能賦值 C.UPDATE可以指定要修改的列和想賦予的新值 D.UPDATE不能加WHERE條件
A.REPLACE AGE WITH AGE+1 B.UPDATE STUDENT AGE WITH AGE+1 C.UPDATE SET AGE WITH AGE+1 D.UPDATE STUDENT SET AGE=AGE+1