說我有一個表,如下所示SQL如何分組
Waiter Complaints
Tim Slow
John Rude
Mike Dumb
Tim Asleep
Tim Charge too much
Mike Lazy
如何創造一個服務員都通過次數最多的投訴下令表,但投訴也說明了什麼?防爆下面
Waiter Complaints
Tim Slow
Tim Asleep
Tim Charge too much
Mike Lazy
Mike Dumb
John Rude
你想創建一個表或只是查詢該結果集的表嗎? – 2013-03-26 21:35:09
只需加入桌子本身...... – Strawberry 2013-03-26 21:35:52