从student表删除年龄大于30的记录的正确SQL命令是 A: DELETE FOR年龄>30 B: DELETE FROM student WHERE年龄>30 C: DEL ETE student FOP年龄>30 D: DELETE student WF IERE年龄＞30
从student表删除年龄大于30的记录的正确SQL命令是 A: DELETE FOR年龄>30 B: DELETE FROM student WHERE年龄>30 C: DEL ETE student FOP年龄>30 D: DELETE student WF IERE年龄＞30
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