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oracle查詢

oracle查詢

fenkapian 2017-04-07 09:04:54
select?t.*?from (select?l.*,rownum?rn?from?teacher?l?order?by?sal?desc)t?where?rn=5; 查出工資排名第五的人,哪里錯(cuò)了呢?
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1 回答

?
爪哇猿

TA貢獻(xiàn)8條經(jīng)驗(yàn) 獲得超6個(gè)贊

可以查啊。。。

haishi 不行就把where rn=5

改成 where t.rn=5

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1 反對(duì) 回復(fù) 2017-04-07
?
慕瓜9220888

TA貢獻(xiàn)868條經(jīng)驗(yàn) 獲得超0個(gè)贊

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反對(duì) 回復(fù) 2021-10-19
?
起個(gè)名都要想好久了

TA貢獻(xiàn)2條經(jīng)驗(yàn) 獲得超0個(gè)贊

這個(gè)不好查出工資排名第五的,因?yàn)閞ownum執(zhí)行在order by語(yǔ)句之前,select t.* from
(select l.*,row_number() over(order by sal desc) rn from teacher l )t where t.rn=5;這樣試一下呢

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反對(duì) 回復(fù) 2017-08-10
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