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ORACLE自定义顺序排序

时间:2014-11-05 16:22:13      阅读:259      评论:0      收藏:0      [点我收藏+]

ORACLE可以借助DECODE函数,自定义顺序排序:

select * from (
    select Nick as item from dual
    union all
    select Viki as item from dual
    union all
    select Glen as item from dual
    union all
    select Robin as item from dual
    union all
    select Total as item from dual
) pre_tab
order by decode(item, Viki, 1, Glen, 2, Robin, 3, Nick, 4, Total, 99);

 

另外,在Report开发中,常需要将Total放最后,其它项则按其它排序方式(一般按正常的升序),可看作同一列有两种排序方式,那么可以这样:

select * from (
    select Nick as item from dual
    union all
    select Viki as item from dual
    union all
    select Glen as item from dual
    union all
    select Robin as item from dual
    union all
    select Total as item from dual
) pre_tab
order by decode(item, Total, 2, 1), item;

 

ORACLE自定义顺序排序

原文:http://www.cnblogs.com/nick-huang/p/4076273.html

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