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作者 fantasywater 在 PTT [ Database ] 看板的留言(推文), 共12則
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1F推: 可以了 感謝!!09/13 09:05
1F推:這麼久了居然還有人回!!05/26 23:24
1F推:原因可能是因為最短車程的路線不只一筆@_@"02/08 17:29
3F→:改成group by t2.salary可以得到正確的結果!02/06 16:31
1F推:感謝回答,驗證過後是正確的,我確實沒有要求平均..02/05 00:12
1F推:感謝回答,但是我沒有要做平均,還是很感謝︿︿02/05 00:27
3F→:一樣的話也是只列一個,先解簡單的再想重複的情形..02/04 12:50
4F→:我剛剛有用UNION做出來 但如果DNO很多筆的話就糟糕了02/04 12:55
1F推:MS-SQL(TOP) = MYSQL(LIMIT) 要用ASC才會對唷~02/04 03:01
6F推:抱歉 的確是要DESC 因為推文時間間隔太長 我忘了更正02/06 16:24
1F→:mysql + limit 1 就是了02/03 01:18
3F→:因為自己研究出來了XD02/04 02:55
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