Question

当运行以下查询时，我试图找到一种方法来显示按联邦财政年度而不是正常顺序值返回的月份。

（即我希望按照以下顺序显示月份，10月，11月，12月，1月，2月，3月，4月，5月6月，7月，8月，9月，而不是1月到12月）谢谢

select wrkgrp,
    sum (case when extract(month from reportdate) = 1 then 1 else 0 end) as January,
    sum (case when extract(month from reportdate) = 2 then 1 else 0 end) as February,
    sum (case when extract(month from reportdate) = 3 then 1 else 0 end) as March,
    sum (case when extract(month from reportdate) = 4 then 1 else 0 end) as April,
    sum (case when extract(month from reportdate) = 5 then 1 else 0 end) as May,
    sum (case when extract(month from reportdate) = 6 then 1 else 0 end) as June,
    sum (case when extract(month from reportdate) = 7 then 1 else 0 end) as July,
    sum (case when extract(month from reportdate) = 8 then 1 else 0 end) as August,
    sum (case when extract(month from reportdate) = 9 then 1 else 0 end) as September,
    sum (case when extract(month from reportdate) = 10 then 1 else 0 end) as October,
    sum (case when extract(month from reportdate) = 11 then 1 else 0 end) as November,
    sum (case when extract(month from reportdate) = 12 then 1 else 0 end) as December,
from workorder
where reportdate between to_date ('2014-10-01 00:00:00', 'yyyy/mm/dd hh24:mi:ss')
and   to_date ('2015-09-30 00:00:00', 'yyyy/mm/dd hh24:mi:ss')
and   wrkgrp = 'PublicWorks'
group by 'wrkgrp;'

Answer 1

在order by子句中添加case语句以获得所需的排序。

ORDER BY 
CASE WHEN extract(month from reportdate) = 10 THEN 1 
CASE WHEN extract(month from reportdate) = 11 THEN 2 
ASC

Answer 2

字段将按照您在select语句中列出的顺序（水平）显示在结果中。构建你的声明与10月首先列出如下：

select wrkgrp,
sum (case when extract(month from reportdate) = 10 then 1 else 0 end) as October,
sum (case when extract(month from reportdate) = 11 then 1 else 0 end) as November,
sum (case when extract(month from reportdate) = 12 then 1 else 0 end) as December,
sum (case when extract(month from reportdate) = 1 then 1 else 0 end) as January,
sum (case when extract(month from reportdate) = 2 then 1 else 0 end) as February,
sum (case when extract(month from reportdate) = 3 then 1 else 0 end) as March,
sum (case when extract(month from reportdate) = 4 then 1 else 0 end) as April,
sum (case when extract(month from reportdate) = 5 then 1 else 0 end) as May,
sum (case when extract(month from reportdate) = 6 then 1 else 0 end) as June,
sum (case when extract(month from reportdate) = 7 then 1 else 0 end) as July,
sum (case when extract(month from reportdate) = 8 then 1 else 0 end) as August,
sum (case when extract(month from reportdate) = 9 then 1 else 0 end) as September
from workorder
where reportdate between to_date ('2014-10-01 00:00:00', 'yyyy/mm/dd hh24:mi:ss') ad to_date ('2015-09-30 00:00:00', 'yyyy/mm/dd hh24:mi:ss') and
wrkgrp = 'PublicWorks'
group by 'wrkgrp;'

按联邦财政年度重新订购月份

2 个答案: