连接两个过滤的CTE

Question

我有这个作为我的第CTE：

WITH CTA (DateB, YrMnB, NAVB, Rank) 
AS 
(
SELECT Date, YrMn, NAV, RANK() OVER (PARTITION BY YrMn ORDER BY Date) AS Rank 
FROM Portfolio.DailyStats 
) 
SELECT DateB, YrMnB, NAVB, Rank 
FROM CTA 
WHERE Rank =1 
ORDER BY DateB DESC 

这给了我如下表：

+----------+---------+----------+------+ 
| DateB | YrMnB | NAVB | Rank | 
+----------+---------+----------+------+ 
| 2/1/2017 | 2017-02 | 33270551 | 1 | 
| 1/3/2017 | 2017-01 | 35085249 | 1 | 
+----------+---------+----------+------+ 

这是我第二CTE：

WITH 
CTB (DPDate, YrMn, PNL) 
AS 
(
SELECT Date, CONVERT(varchar(7),Date) AS YrMn, SUM (GLPeriod) AS PNL 
FROM Portfolio.DailyPortfolio 
GROUP BY Date 
) 
SELECT ctb.DPDate, ctb.YrMn, ctb.PNL, ds. SP500, ds.NetExp 
FROM CTB ctb 
JOIN Portfolio.DailyStats ds 
ON ctb.DPDate = ds.Date 
WHERE ds.SP500 < 0 
ORDER BY ctb.DPDate DESC 
GO 

这给我第二张桌子：

+-----------+---------+---------+---------+--------+ 
| DPDate | YrMn | PNL | SP500 | NetExp | 
+-----------+---------+---------+---------+--------+ 
| 2/22/2017 | 2017-02 | -333191 | -0.0011 | 0.6739 | 
| 2/16/2017 | 2017-02 | -111896 | -0.0009 | 0.6608 | 
| 2/6/2017 | 2017-02 | -469190 | -0.0021 | 0.6087 | 
| 1/31/2017 | 2017-01 | 61991 | -0.0009 | 0.5007 | 
| 1/30/2017 | 2017-01 | 41431 | -0.006 | 0.6032 | 
| 1/27/2017 | 2017-01 | -925463 | -0.0009 | 0.5879 | 
| 1/26/2017 | 2017-01 | -75744 | -0.0007 | 0.6266 | 
| 1/23/2017 | 2017-01 | -277345 | -0.0027 | 0.6648 | 
| 1/19/2017 | 2017-01 | 35323 | -0.0036 | 0.6575 | 
| 1/17/2017 | 2017-01 | -242976 | -0.003 | 0.6602 | 
| 1/12/2017 | 2017-01 | -351322 | -0.0021 | 0.5656 | 
| 1/9/2017 | 2017-01 | -424598 | -0.0035 | 0.6165 | 
| 1/5/2017 | 2017-01 | -696164 | -0.0008 | 0.5793 | 
+-----------+---------+---------+---------+--------+ 

我想加入这两个表，这样我的最终结果是这样的：

+-----------+---------+---------+---------+--------+----------+ 
| DPDate | YrMn | PNL | SP500 | NetExp | NAVB | 
+-----------+---------+---------+---------+--------+----------+ 
| 2/22/2017 | 2017-02 | -333191 | -0.0011 | 0.6739 | 33270551 | 
| 2/16/2017 | 2017-02 | -111896 | -0.0009 | 0.6608 | 33270551 | 
| 2/6/2017 | 2017-02 | -469190 | -0.0021 | 0.6087 | 33270551 | 
| 1/31/2017 | 2017-01 | 61991 | -0.0009 | 0.5007 | 35085249 | 
| 1/30/2017 | 2017-01 | 41431 | -0.006 | 0.6032 | 35085249 | 
| 1/27/2017 | 2017-01 | -925463 | -0.0009 | 0.5879 | 35085249 | 
| 1/26/2017 | 2017-01 | -75744 | -0.0007 | 0.6266 | 35085249 | 
| 1/23/2017 | 2017-01 | -277345 | -0.0027 | 0.6648 | 35085249 | 
| 1/19/2017 | 2017-01 | 35323 | -0.0036 | 0.6575 | 35085249 | 
| 1/17/2017 | 2017-01 | -242976 | -0.003 | 0.6602 | 35085249 | 
| 1/12/2017 | 2017-01 | -351322 | -0.0021 | 0.5656 | 35085249 | 
| 1/9/2017 | 2017-01 | -424598 | -0.0035 | 0.6165 | 35085249 | 
| 1/5/2017 | 2017-01 | -696164 | -0.0008 | 0.5793 | 35085249 | 
+-----------+---------+---------+---------+--------+----------+ 

这是我写的加入两个表的代码：

WITH CTA (DateB, YrMnB, NAVB, Rank) 
AS 
(
SELECT Date, YrMn, NAV, RANK() OVER (PARTITION BY YrMn ORDER BY Date) AS Rank 
FROM Portfolio.DailyStats 
), 

CTB (DPDate, YrMn, PNL) 
AS 
(
SELECT Date, CONVERT(varchar(7),Date) AS YrMn, SUM (GLPeriod) AS PNL 
FROM Portfolio.DailyPortfolio 
GROUP BY Date 
) 
SELECT ctb.DPDate, ctb.YrMn, ctb.PNL, ds. SP500, ds.NetExp, cta.NAVB 
FROM CTB ctb 
FULL JOIN CTA 
N Cta.YrMnB = ctb.YrMn 
JOIN Portfolio.DailyStats ds 
ON ctb.DPDate = ds.Date 
WHERE ds.SP500 < 0 OR cta.Rank=1 
ORDER BY ctb.DPDate desc 

我的结果结束了未来出这样的：

Answer 1

你也许可以让他们单独做在最后的加盟：

WITH 
CTB (DPDate, YrMn, PNL) AS (
    SELECT Date, CONVERT(varchar(7),Date) AS YrMn, SUM (GLPeriod) AS PNL 
    FROM Portfolio.DailyPortfolio 
    GROUP BY Date 
), 
CTB2 as (
    SELECT ctb.DPDate, ctb.YrMn, ctb.PNL, ds. SP500, ds.NetExp 
    FROM CTB ctb 
    JOIN Portfolio.DailyStats ds 
    ON ctb.DPDate = ds.Date 
    WHERE ds.SP500 < 0 
    ORDER BY ctb.DPDate DESC 
), 
CTA (DateB, YrMn, NAVB, Rank) AS (
    SELECT Date, YrMn, NAV, RANK() OVER (PARTITION BY YrMn ORDER BY Date) AS Rank 
    FROM Portfolio.DailyStats 
), 
CTA2 as (
    SELECT DateB, YrMn, NAVB, Rank 
    FROM CTA 
    WHERE Rank =1 
    ORDER BY DateB DESC 
) 
select b.*, a.navb 
from CTB2 b 
join CTA2 a on b.YrMn = a.YrMn