Technically, due by 8 am means 8 am is not late while due before 8 am means 8 am is late. However, from a practical viewpoint, ... ... <看更多>

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Another method: SELECT * FROM ( SELECT * FROM table_name ORDER BY date ASC, time ASC ) AS sub GROUP BY name. GROUP BY groups on the first ... ... <看更多>

Learn to appreciate what you have, before time forces you to appreciate what you had. 在時間迫使你去羡慕曾經擁有之前，學著珍惜你現在擁有的 ... ... <看更多>