作者查詢 / grence
作者 grence 在 PTT [ Database ] 看板的留言(推文), 共182則
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1F推:看不懂"距離今天以前,可預約的次數" 感覺是比date1跟現在11/11 16:56
2F推:not like'%盤中勝%'11/07 17:25
1F推:看起來很合理 = =a..原本的條件長怎樣?11/07 09:18
2F推:唔…把 AND condition_2放到 left join後面應該就對了?11/07 09:23
1F推:感覺有點多此一舉..11/07 09:13
1F推:DBMS? 在前端程式處理會比較容易、有效10/28 23:53
1F推:dbms?10/22 08:51
2F推:因為在別的板推過也算XD10/21 18:10
2F推:現在沒得實驗,感覺是float不準,轉成decimal再sum試試看10/18 21:13
5F推:看起來只需要group by…每次都要取隨機還比較麻煩咧XD10/10 22:20
3F推:不會吧…如果會應該是因為SLECT *..撈出不必要的欄位10/08 01:50