看了你写的"select a.class,a.no,a.grade from yourtable a, ( select class,max(grade)as grade from yourtable group by class) b where a.class=b.class and a.grade=b.grade "之后,本人十分敬佩,但我在access97的数据库中运行,它却不认?请问这是什么?
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zoukaix请进!
看了你写的"select a.class,a.no,a.grade from yourtable a, ( select class,max(grade)as grade from yourtable group by class) b where a.class=b.class and a.grade=b.grade "之后,本人十分敬佩,但我在access97的数据库中运行,它却不认?请问这是什么?