作者查詢 / blestadsl
作者 blestadsl 在 PTT [ Database ] 看板的留言(推文), 共5則
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3F→:如果每個user的非數字型態欄位很多..還是建議分表..12/26 17:11
2F推:請問如果是order by的欄位~設index會不會比較快?04/14 13:11
5F推:分析完是成本n%的那種嘛?...不知道是10%快~還是90%快04/15 07:13
5F→:在mssql中~最外面還要在包一個select..01/31 23:40
8F→:如果select 中有 order by 就需要了= =02/02 13:05
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