作者查詢 / agogoman
作者 agogoman 在 PTT [ Database ] 看板的留言(推文), 共6則
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1F推:不是耶,我想取A表格SALES最多的前三家店,B表格不用管了08/12 11:01
2F推:那是接下來其他問題的延伸,故我把題目定為找前三,簡易化08/12 11:06
1F→:多取一個MAX的日期,並加上HAVING的條件即可08/13 03:13
2F→:不好意思,後來想想我的寫法頂多找到前兩筆,而大大樓上你08/12 05:09
3F→:的意思是JOIN本身的TABLE就好了嗎 ?08/12 05:17
5F推:我不是問OUTJOIN的問題>_<08/12 09:17
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