删除表 student 中班级 cid 为 6 的全部学生信息，下面 SQL 语句正确的是 ？
A.delete FROM student where cid = 6 B.delete * FROM student where cid = 6 C.delete FROM student on cid = 6 D.delete * FROM student on cid = 6正确答案A
删除表 student 中班级 cid 为 6 的全部学生信息，下面 SQL 语句正确的是 ？
A.delete FROM student where cid = 6 B.delete * FROM student where cid = 6 C.delete FROM student on cid = 6 D.delete * FROM student on cid = 6正确答案A
