排序格式化的日期列日期

Question

我格式化日期列只有年份和月份名称的字符串如下

   WITH c1 as ( 
SELECT FORMAT(CompletedDate,'MMMM yyyy') as FormattedDate, 
COUNT(CASE WHEN CoId =5 then 1 ELSE NULL END) as "SSS", 
COUNT(CASE WHEN CoId =3 then 1 ELSE NULL END) as "EEE" 
    FROM Rtml5 
    where CompletedDate>='2017-01-01' AND CompletedDate<= '2017-12-31' 
group by FORMAT(CompletedDate,'MMMM yyyy') 
), 
c2 As (
    SELECT FORMAT(CompletedDate,'MMMM yyyy') as FormattedDate,COUNT(Rawew_ID) as MMM 
    FROM Rawew 
    where CompletedDate>='2017-01-01' AND CompletedDate<= '2017-12-31' 
group by FORMAT(CompletedDate,'MMMM yyyy') 
) 
SELECT coalesce(c1.FormattedDate, c2.FormattedDate) as FormattedDate, c1.SSS,c1.EEE,c2.MMM 
FROM c1 FULL OUTER JOIN c2 on c1.FormattedDate = c2.FormattedDate 

然后，我使用的组的格式（CompletedDate，“MMMM YYYY”）这个格式化列 我得到的结果如下

April 2017 
    August 2017 
    February 2016 
    January 2017 
    July 2016 
    June 2017 
    March 2017 
    May 2017 
    October 2017 
    September 2017 

但我怎么可以排序这是一个日期列本身。我想要的结果顺序为2016年2月，2016年7月，Januaty2017，2017年2月....

Answer 1

按年份和月份排序，它们需要在分组和cte结果中。

WITH c1 as ( 
    SELECT FORMAT(CompletedDate,'MMMM yyyy') as FormattedDate, 
     datepart(year,CompletedDate) YearNr,datepart(month,CompletedDate) MonthNr 
     COUNT(CASE WHEN CoId =5 then 1 ELSE NULL END) as "SSS", 
     COUNT(CASE WHEN CoId =3 then 1 ELSE NULL END) as "EEE" 
    FROM Rtml5 
    where CompletedDate>='2017-01-01' AND CompletedDate<= '2017-12-31' 
    group by datepart(year,CompletedDate),datepart(month,CompletedDate), 
     FORMAT(CompletedDate,'MMMM yyyy') 
    ), 
c2 As (
    SELECT FORMAT(CompletedDate,'MMMM yyyy') as FormattedDate,COUNT(Rawew_ID) as MMM, 
     datepart(year,CompletedDate) YearNr,datepart(month,CompletedDate) MonthNr 
    FROM Rawew 
    where CompletedDate>='2017-01-01' AND CompletedDate<= '2017-12-31' 
    group by datepart(year,CompletedDate),datepart(month,CompletedDate), 
     FORMAT(CompletedDate,'MMMM yyyy') 
) 

SELECT coalesce(c1.FormattedDate, c2.FormattedDate) as FormattedDate, c1.SSS,c1.EEE,c2.MMM 
FROM c1 
FULL OUTER JOIN c2 on c1.FormattedDate = c2.FormattedDate 
order by coalesce(c1.YearNr,c2.YearNr),coalesce(c1.MonthNr,c2.MonthNr)