Question

我正在创建一个视图，但是我需要执行另一个选择来填充该视图的一个列。以下是我要用于视图的查询：

SELECT JOB, REL, PHASE, AVG(TCOUNT) AS AVGCOUNT, @NUMFRAMES AS NUMFRAMES, @NUMFRAMES/AVG(TCOUNT) AS REMAIN_DAYS
FROM
(SELECT
  vwFRAME_TOTALS.JOB
  ,vwFRAME_TOTALS.REL
  ,vwFRAME_TOTALS.PHASE
  ,vwFRAME_TOTALS.[DAY]
  ,COUNT(vwFRAME_TOTALS.FR_ID) AS TCOUNT
FROM
  vwFRAME_TOTALS
  GROUP BY JOB,REL,PHASE,DAY)
AS COUNTS
GROUP BY JOB, REL, PHASE

和@NUMFRAMES来自另一个SELECT，如下所示：

SELECT @NUMFRAMES=count(*) FROM dbo.WFR

我怎样才能在一个声明中做到这一点？

Answer 1

SELECT JOB, REL, PHASE, AVG(TCOUNT) AS AVGCOUNT, (SELECT count(*) FROM dbo.WFR) AS NUMFRAMES, (SELECT count(*) FROM dbo.WFR)/AVG(TCOUNT) AS REMAIN_DAYS
FROM
(SELECT
  vwFRAME_TOTALS.JOB
  ,vwFRAME_TOTALS.REL
  ,vwFRAME_TOTALS.PHASE
  ,vwFRAME_TOTALS.[DAY]
  ,COUNT(vwFRAME_TOTALS.FR_ID) AS TCOUNT
FROM
  vwFRAME_TOTALS
  GROUP BY JOB,REL,PHASE,DAY)
AS COUNTS
GROUP BY JOB, REL, PHASE

Answer 2

我很难测试，因为我没有你的架构，但是这样的工作有用吗？

SELECT JOB, REL, PHASE, AVG(TCOUNT) AS AVGCOUNT, NUMFRAMES, @NUMFRAMES/AVG(TCOUNT) AS REMAIN_DAYS
FROM
(SELECT
  vwFRAME_TOTALS.JOB
  ,vwFRAME_TOTALS.REL
  ,vwFRAME_TOTALS.PHASE
  ,vwFRAME_TOTALS.[DAY]
  ,COUNT(vwFRAME_TOTALS.FR_ID) AS TCOUNT
FROM
  vwFRAME_TOTALS
  GROUP BY JOB,REL,PHASE,DAY)
AS COUNTS
INNER JOIN (SELECT count(*) as NUMFRAMES FROM dbo.WFR) AS FRAMES
ON 1=1
GROUP BY JOB, REL, PHASE

使用包含另一个选择结果的一列创建视图

2 个答案: