DB2 分页查询方法，查询top N 条记录
1. db2分页查询sqlselect * from (
select ROW_NUMBER() OVER(ORDER BY DOC_UUID DESC) AS ROWNUM, DOC_UUID, DOC_DISPATCHORG, DOC_SIGNER, DOC_TITLE from DT_DOCUMENT) a
where ROWNUM > 20 and ROWNUM <=30
2.ROW_NUMBER()函数
增加行号，不排序
select * from ( select ROW_NUMBER() OVER() AS ROWNUM,t.*from DT_DOCUMENTt ) a
增加行号，按某列排序
select * from ( select ROW_NUMBER() OVER( ORDER BY DOC_UUID DESC ) AS ROWNUM,t.*from DT_DOCUMENTt ) a
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