原文:Oracle查詢重復字段

查詢某個字段有重復的數據: select org id from oa food yy group by org id having count gt 查詢某些字段有重復的數據: select org id,food id from oa food yy group by org id,food id having count gt select from oa food yy where org ...

2019-05-30 17:15 0 974 推薦指數:

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oracle 根據字段查詢重復數據

1.情景展示   由上圖可知,APPUSERID字段和VIRTUAL_CARDID字段存在一對多的關系,如何將重復的APPUSERID字段的數據查詢出來呢? 2.原因分析   先查出重復的APPUSERID都有哪些,再根據重復的APPUSERID查詢該條數據記錄 ...

Thu Jan 10 01:07:00 CST 2019 0 1192
oracle查詢字段重復數據

select card_no,count(*) from GM_PPU_RESIDENT_NORBASE where group by card_no having count( ...

Tue Jun 18 05:01:00 CST 2019 1 3198
Oracle 查詢表中字段里數據是否有重復

1、查找單個字段 select 字段名,count(*) from table group by 字段名 having count(*) > 1 2、查找組合字段: SELECT TEST_NAME1,TEST_NAME2,COUNT(*) FROM table ...

Wed Nov 02 23:58:00 CST 2016 0 19388
oracle 根據時間字段查詢

oracle 根據時間字段查詢數據 ROWNUM 是對前面查詢的記錄做限制,比如查詢的記錄 > 2000 條,那么只取前面的 2000 條 ''' SELECT * FROM (SELECT CLXXBH, JGSK, CDBH, HPHM, HPYS, SBBH, KKMC ...

Thu Jul 11 02:06:00 CST 2019 0 2038
 
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