如何在db2中显示两个日期之间的月份

Question

我有一个表db2admin.shdl_dtl，其中有两列日期 -

STARTDATE 结束日期

从这两个日期列中我想显示两个日期之间的月份

即。 startdate =＆＃39; 2015-01-05＆＃39;并结束=＆＃39; 2015-04-20＆＃39;那么查询的输出应该是这样的 -

输出 - jan，feb，mar，apr

Answer 1

with cte (diffmonths,monthdiff) as 
(select date(startdate ) as diffmonths,0 from sysibm.sysdummy1
 union all
 select date(diffmonths) + 1 month as diffmonths,month(diffmonths) from cte   
 where diffmonths<=(date(enddate)) )
 select * from cte where MONTHDIFF >0