db2笔记_5_特殊排序
作者:互联网
根据fcustno分类,按ftime排序(不同的fcustno,fnum从1开始算)
取fcustno和对应的最大ftime:
select * from ( SELECT FCUSTNO,FTIME,row_number() over(partition by FCustNo order by FTIME desc) fnum from tableName ) where fnum=1;
自定义排序
select * from tableName where colName in(1, 2, 3) order by decode(colName, 2, 1, 1, 2, 3);
标签:排序,fcustno,fnum,tableName,笔记,FTIME,ftime,db2 来源: https://www.cnblogs.com/luyuting/p/16576024.html