作者查詢 / mrforget
作者 mrforget 在 PTT [ Database ] 看板的留言(推文), 共9則
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1F推: merge into 只補沒有的!?06/10 22:12
1F推: select * from trading_volume where 股票代碼 = '1101'04/30 01:40
1F推: http://www.tutorialspoint.com/jdbc/ 自己看一下。03/28 21:34
2F推: select name from tab where score >= 85 and exists03/12 01:31
3F→: (select name from tab where score <=75)03/12 01:32
4F→: group by name having count(name)>=2;03/12 01:32
5F→: 我是用oracle03/12 01:32
6F→: <=75那邊有錯,應該是<7503/12 01:33
2F→:嗯,非常感謝,網路上也只看到這方法。07/10 18:54
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