将连续数字计入一行

我最近发现我们可以使用Oracle的Max（Decode（））函数来旋转表的结果。我已经执行了这个很好。但是，旋转表格只是我需要的解决方案的一部分。该转动功能结果是这样的：将连续数字计入一行

01,02,03,05,06,07,08,09,10,11,12,13,14,16,17,20,21,23,25

我真正需要的是这样的：

1-17, 20-21,23,25

我真的不知道该如何下手解决这一点，但到目前为止，我有以下查询：

SELECT DISTINCT 
    MAX(DECODE(wldw.wafernumber,'01', '01')) 
     || MAX(DECODE(wldw.wafernumber,'02', ',02')) 
     || MAX(DECODE(wldw.wafernumber,'03', ',03')) 
     || MAX(DECODE(wldw.wafernumber,'04', ',04')) 
     || MAX(DECODE(wldw.wafernumber,'05', ',05')) 
     || MAX(DECODE(wldw.wafernumber,'06', ',06')) 
     || MAX(DECODE(wldw.wafernumber,'07', ',07')) 
     || MAX(DECODE(wldw.wafernumber,'08', ',08')) 
     || MAX(DECODE(wldw.wafernumber,'09', ',09')) 
     || MAX(DECODE(wldw.wafernumber,'10', ',10')) 
     || MAX(DECODE(wldw.wafernumber,'11', ',11')) 
     || MAX(DECODE(wldw.wafernumber,'12', ',12')) 
     || MAX(DECODE(wldw.wafernumber,'13', ',13')) 
     || MAX(DECODE(wldw.wafernumber,'14', ',14')) 
     || MAX(DECODE(wldw.wafernumber,'15', ',15')) 
     || MAX(DECODE(wldw.wafernumber,'16', ',16')) 
     || MAX(DECODE(wldw.wafernumber,'17', ',17')) 
     || MAX(DECODE(wldw.wafernumber,'18', ',18')) 
     || MAX(DECODE(wldw.wafernumber,'19', ',19')) 
     || MAX(DECODE(wldw.wafernumber,'20', ',20')) 
     || MAX(DECODE(wldw.wafernumber,'21', ',21')) 
     || MAX(DECODE(wldw.wafernumber,'22', ',22')) 
     || MAX(DECODE(wldw.wafernumber,'23', ',23')) 
     || MAX(DECODE(wldw.wafernumber,'24', ',24')) 
     || MAX(DECODE(wldw.wafernumber,'25', ',25')) AS WAFERS  
     , 'history' as well 
FROM a_wiplothistory wl 
JOIN Container C ON (wl.containerid = c.containerid OR wl.containerid= c.splitfromid) 
JOIN a_wiplotdetailshistory wld ON wl.wiplothistoryid = wld.wiplothistoryid 
JOIN a_wiplotdetailswafershistory wldw ON wld.wiplotdetailshistoryid = wldw.wiplotdetailshistoryid 
WHERE c.containername = :lot

感谢您的帮助。

来源

2013-05-16 GianIsTheName

对于复杂的条件，最好使用'case〜when'。 – ntalbs

hello ntalbs，你能给我一个关于如何开始这个的样本吗？ – GianIsTheName

我误解了你的问题。如果你想把连续的数字减少到范围（例如：01,02,03 - > 1-3，和02,03,04 - > 2-4），那么'case〜when'不会帮助你。 – ntalbs

SELECT DISTINCT 
MAX(CASE WHEN wldw.wafernumber BETWEEN '01' AND '17' THEN '01-17' END) 
    || MAX(DECODE(wldw.wafernumber,'18', ',18')) 
    || MAX(DECODE(wldw.wafernumber,'19', ',19')) 
    || MAX(CASE WHEN wldw.wafernumber IN ('20','21') THEN '20-21' END) 
    || MAX(DECODE(wldw.wafernumber,'21', ',21')) 
    || MAX(DECODE(wldw.wafernumber,'22', ',22')) 
    || MAX(DECODE(wldw.wafernumber,'23', ',23')) 
    || MAX(DECODE(wldw.wafernumber,'24', ',24')) 
    || MAX(DECODE(wldw.wafernumber,'25', ',25')) AS WAFERS  
    , 'history' as well

来源

2013-05-16 05:08:14

将连续数字计入一行

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