Oracle多表联查分页数据重复出现
发布时间:2020-12-12 14:13:48 所属栏目:百科 来源:网络整理
导读:一、问题描述 使用Oracle的分页语句进行分页,第一页,没问题,第二页出现重复数据: 第一页的数据: SELECT *FROM (SELECT u.*,rownum AS rFROM (SELECT configs.VIDEOSERVICE,configs.VOICESERVICE,configs.IMAGESERVICE,doc.id AS docid,doc.name AS docname,d
一、问题描述
使用Oracle的分页语句进行分页,第一页,没问题,第二页出现重复数据:
第一页的数据: SELECT * FROM ( SELECT u.*,rownum AS r FROM ( SELECT configs.VIDEOSERVICE,configs.VOICESERVICE,configs.IMAGESERVICE,doc.id AS docid,doc.name AS docname,doc.begood,rice.graphicprice,rice.speechprice,rice.videoprice,chart.titleName,hpath.FTPURL || doc.PHOTOID AS ftpurl,luate.score FROM HEALTHDOCTOR doc LEFT JOIN HealthServiceConfig configs ON doc.id = configs.docid LEFT JOIN HEALTHPRICE rice ON doc.id = rice.docid LEFT JOIN healthTitleChart chart ON doc.titlecode = chart.TITLECODE LEFT JOIN HEALTHFTPPATH hpath ON doc.PATHCODE = hpath.PATHCODE LEFT JOIN ( SELECT round(AVG(score),1) AS score,docid FROM healthevaluate GROUP BY docid ) luate ON doc.id = luate.docid LEFT JOIN ( SELECT COUNT(*) AS ordersum,docid FROM HealthyOrder GROUP BY docid ) orders ON doc.id = orders.docid WHERE rice.GRAPHICPRICE >= 0 ) u WHERE rownum < 13 ) WHERE r >= 1
第二页的数据: SELECT * FROM ( SELECT u.*,docid FROM HealthyOrder GROUP BY docid ) orders ON doc.id = orders.docid WHERE rice.GRAPHICPRICE >= 0 ) u WHERE rownum < 25 ) WHERE r >= 13
第一页和第二页有数据重复了,排序有问题。
二、解决方法
在最外层加个"order by id"其中这个id是主键就行了:
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