SQL语句DELETE FROM 学生 WHERE 年龄＞25的功能是( )。

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DELETE FOR 年龄＞30 DELETE FROM student WHERE 年龄＞30 DELETE student FOR 年龄＞30 DELETE student WHERE 年龄＞30

DELETE FOR AGE>30 DELETE FROM S WHERE AGE>30 DELETE S FOR AGE>30 DELETE S WHERE AGE>30

DELETE FOR AGE＞30 DELETE FROM S WHERE AGE＞30 DELETE S FOR AGE＞30 DELETE S WHERE AGE＞30

DELETE FOR 年龄＞30 DELETE FROM student WHERE 年龄＞30 DELETE student FOP 年龄＞30 DELETE student WHERE 年龄＞30

DELETE STUD WHERE学号="20030019" DELETE FROM STUD WHERE学号="20030019" DELETE TABLE STUD WHERE学号="20030019" DELETE FROM WHERE 学号="20030019"

DELETE FROM 学生 WHERE 学号="1001" DROP FROM 学生 FOR 学号="1001" DROP FROM 学生 WHERE 学号="1001" DELETE FROM 学生 FOR 学号="1001"

DROP FROM Student WHERE 学号="1001" DROP FROM Student FOR 学号="1001" DELETE FROM Student WHERE 学号="1001" DELETE FROM Student FOR 学号="1001"

ALTER TABLE SDROP COLUMN年龄 DELETE年龄FROM S ALTER TABLE S DELETE COLUMN年龄 ALTER TABLE S DELETE年龄

仅I和II 仅II 仅II和IV 仅I、II和III

DROP FROM Student WHERE学号="1001" DROP FROM Student FOR学号="1001" DELETE FROM Student WHERE学号="1001" DELETE FROM Student FOR学号="1001"

DELETE STUD WHERE 学号＝“20030019” DELETE FROM STUDWHERE学号＝“20030019” DELETE TABLE STUD WHERE学号＝“20030019” DELETE FROM WHERE 学号＝“20030019”

DELETE FROM学生WHERE学号="1001" DROP FROM学生FOR学号="1001" DROP FROM学生WHERE学号="1001" DELETE FROM学生FOR学号="1001"

DELETE FOR年龄＞30 DELETE FROM student WHERE年龄＞30 DELETE student FOR年龄＞30 DELETE student WHERE年龄＞30

DELETE FOR年龄>30 DELETE FROM student WHERE年龄>30 DELETE student FOR年龄>30 DELETE student WHERE年龄>30