作者查詢 / evernever
作者 evernever 在 PTT [ Database ] 看板的留言(推文), 共40則
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3F→:想問一下是MSSQL嗎?12/06 17:55
1F推:學長提的正規化可能是想用PK/FK來代替like11/22 19:33
1F推:三個表的關聯不就是 year? group by year, 再 left join10/20 15:45
1F推:query 加 " order by pmid" 試試看04/15 21:34
1F推:拿掉"刪除"權限 = 現有權限 & 0xFFFFFCFFFFFFFF...64bit10/13 15:34
1F→:Prepared Statement http://0rz.tw/JV0Sx09/28 14:38
1F推:你可以看一下 group_concat 怎麼用09/26 09:07
1F推:日期用``框看看...`日期`09/21 22:06
2F推:'0xFF000069' 後面要逗號..09/20 17:07
2F推:A left join (sum B) left join (sum C)09/04 15:19
4F→:樓上(1,5)(1,6)sum起來變(1,11), 但(1,5)(1,5)會變(1,5)09/04 16:09