Question

我试图让这个查询返回每年的记录，而不是返回表中所有内容的单个记录。

SELECT 
    JAN
    , FEB
    , MAR
    , APR
    , MAY
    , JUN
    , JUL
    , AUG
    , SEP
    , OCT
    , NOV
    , [DEC]
    ,JAN + FEB + MAR + APR + MAY + JUN + JUL + AUG + SEP + OCT + NOV + [DEC] AS TOTAL
    FROM
    (SELECT DISTINCT
        (SELECT COUNT(*) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 1) AS JAN
        , (SELECT COUNT(*) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 2) AS FEB
        , (SELECT COUNT(*) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 3) AS MAR
        , (SELECT COUNT(*) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 4) AS APR
        , (SELECT COUNT(*) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 5) AS MAY
        , (SELECT COUNT(*) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 6) AS JUN
        , (SELECT COUNT(*) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 7) AS JUL
        , (SELECT COUNT(*) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 8) AS AUG
        , (SELECT COUNT(*) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 9) AS SEP
        , (SELECT COUNT(*) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 10) AS OCT
        , (SELECT COUNT(*) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 11) AS NOV
        , (SELECT COUNT(*) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 12) AS [DEC]
    FROM RET.tbl_Record)x

这会返回1条记录（我知道这是假设的）但我希望它能够返回每年的记录。我只是不确定如何做到这一点。

修改

SELECT 
    JAN
    , FEB
    , MAR
    , APR
    , MAY
    , JUN
    , JUL
    , AUG
    , SEP
    , OCT
    , NOV
    , [DEC]
    ,JAN + FEB + MAR + APR + MAY + JUN + JUL + AUG + SEP + OCT + NOV + [DEC] AS TOTAL
    FROM
    (SELECT
        (SELECT COUNT(dt_updated) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 1) AS JAN
        , (SELECT COUNT(dt_updated) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 2) AS FEB
        , (SELECT COUNT(dt_updated) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 3) AS MAR
        , (SELECT COUNT(dt_updated) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 4) AS APR
        , (SELECT COUNT(dt_updated) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 5) AS MAY
        , (SELECT COUNT(dt_updated) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 6) AS JUN
        , (SELECT COUNT(dt_updated) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 7) AS JUL
        , (SELECT COUNT(dt_updated) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 8) AS AUG
        , (SELECT COUNT(dt_updated) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 9) AS SEP
        , (SELECT COUNT(dt_updated) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 10) AS OCT
        , (SELECT COUNT(dt_updated) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 11) AS NOV
        , (SELECT COUNT(dt_updated) FROM RET.tbl_Record WHERE MONTH(dt_updated) = 12) AS [DEC]
    FROM RET.tbl_Record
    GROUP BY YEAR(dt_updated))x

现在返回3条记录，这是我正在寻找的正确记录数量但是每条记录返回相同的值（它记录每条记录中的所有三年）

Answer 1

例如，这将解决2011年，2012年和2013年的所有月份，重复性较低的代码。

DECLARE @years TABLE(y INT);

INSERT @years SELECT 2011 UNION ALL SELECT 2012 UNION ALL SELECT 2013;

;WITH m(m) AS 
(
  SELECT TOP (12) ROW_NUMBER() OVER (ORDER BY [object_id]) - 1
  FROM sys.all_objects ORDER BY [object_id]
),
dates(y,m) AS
(
  SELECT y.y, DATEADD(MONTH, m.m, DATEADD(YEAR, y.y - 1900, 0)) FROM m 
  CROSS JOIN @years AS y
),
s([YEAR],m,c) AS
(
  SELECT d.y, LEFT(UPPER(DATENAME(MONTH, d.m)),3), COUNT(r.dt_updated)
    FROM dates AS d LEFT OUTER JOIN RET.tbl_Record AS r
    ON r.dt_updated >= d.m AND r.dt_updated < DATEADD(MONTH, 1, d.m)
    GROUP BY d.y, DATENAME(MONTH, d.m)
),
n AS
(
  SELECT * FROM s PIVOT (MAX(c) FOR m IN 
    (JAN,FEB,MAR,APR,MAY,JUN,JUL,AUG,SEP,OCT,NOV,[DEC])) AS p
)
SELECT *,Total = JAN+FEB+MAR+APR+MAY+JUN+JUL+AUG+SEP+OCT+NOV+[DEC] FROM n
ORDER BY [YEAR];

需要解决不同年份？没问题，只需将硬编码插入更改为@years即可。

需要它是动态的吗？再一次，没问题;这将解决表中发现的每一年：

INSERT @years SELECT DISTINCT YEAR(dt_updated) FROM RET.tbl_Record;

需要它更具活力（例如表中最近三年）：

INSERT @years SELECT DISTINCT TOP (3) YEAR(dt_updated) 
  FROM RET.tbl_Record ORDER BY YEAR(dt_updated) DESC;

平均而言，抱歉，你是独自一人（你在游戏中改变了对我的要求）。我的建议：在您的报告工具和/或表示层中执行此操作。

Answer 2

或许：

GROUP BY YEAR（dt_updated）

Answer 3

我希望有一种更有效的方法来完成任务，但看起来解决方案是：

SELECT
      JAN.dtyear AS [YEAR]
    , ISNULL(JAN.TOTAL, 0) AS JAN
    , ISNULL(FEB.TOTAL, 0) AS FEB
    , ISNULL(MAR.TOTAL, 0) AS MAR
    , ISNULL(APR.TOTAL, 0) AS APR
    , ISNULL(MAY.TOTAL, 0) AS MAY
    , ISNULL(JUN.TOTAL, 0) AS JUN
    , ISNULL(JUL.TOTAL, 0) AS JUL
    , ISNULL(AUG.TOTAL, 0) AS AUG
    , ISNULL(SEP.TOTAL, 0) AS SEP
    , ISNULL(OCT.TOTAL, 0) AS OCT
    , ISNULL(NOV.TOTAL, 0) AS NOV
    , ISNULL([DEC].TOTAL, 0) AS [DEC]
    , ISNULL(JAN.TOTAL, 0) + ISNULL(FEB.TOTAL, 0) + ISNULL(MAR.TOTAL, 0) + ISNULL(APR.TOTAL, 0) + ISNULL(MAY.TOTAL, 0) + ISNULL(JUN.TOTAL, 0) + ISNULL(JUL.TOTAL, 0) + ISNULL(AUG.TOTAL, 0) + ISNULL(SEP.TOTAL, 0) + 
        ISNULL(OCT.TOTAL, 0) + ISNULL(NOV.TOTAL, 0) + ISNULL([DEC].TOTAL, 0) AS TOTAL
FROM 
    (SELECT COUNT(RET_record_id) as TOTAL, YEAR(dt_updated) AS dtyear FROM RET.tbl_Record WHERE MONTH(dt_updated) = 1 GROUP BY YEAR(dt_updated)) JAN
    LEFT OUTER JOIN
    (SELECT COUNT(RET_record_id) as TOTAL, YEAR(dt_updated) AS dtyear FROM RET.tbl_Record WHERE MONTH(dt_updated) = 2 GROUP BY YEAR(dt_updated)) FEB
     ON JAN.dtyear = FEB.dtyear
    LEFT OUTER JOIN
    (SELECT COUNT(RET_record_id) AS TOTAL, YEAR(dt_updated) AS dtyear FROM RET.tbl_Record WHERE MONTH(dt_updated) = 3 GROUP BY YEAR(dt_updated)) MAR
     ON JAN.dtyear = MAR.dtyear AND FEB.dtyear = MAR.dtyear
    LEFT OUTER JOIN
    (SELECT COUNT(RET_record_id) AS TOTAL, YEAR(dt_updated) AS dtyear FROM RET.tbl_Record WHERE MONTH(dt_updated) = 4 GROUP BY YEAR(dt_updated)) APR
     ON JAN.dtyear = APR.dtyear
    LEFT OUTER JOIN 
    (SELECT COUNT(RET_record_id) AS TOTAL, YEAR(dt_updated) AS dtyear FROM RET.tbl_Record WHERE MONTH(dt_updated) = 5 GROUP BY YEAR(dt_updated)) MAY
     ON JAN.dtyear = MAY.dtyear
    LEFT OUTER JOIN
    (SELECT COUNT(RET_record_id) AS TOTAL, YEAR(dt_updated) AS dtyear FROM RET.tbl_Record WHERE MONTH(dt_updated) = 6 GROUP BY YEAR(dt_updated)) JUN
     ON JAN.dtyear = JUN.dtyear
    LEFT OUTER JOIN
    (SELECT COUNT(RET_record_id) AS TOTAL, YEAR(dt_updated) AS dtyear FROM RET.tbl_Record WHERE MONTH(dt_updated) = 7 GROUP BY YEAR(dt_updated)) JUL
     ON JAN.dtyear = JUL.dtyear
    LEFT OUTER JOIN
    (SELECT COUNT(RET_record_id) AS TOTAL, YEAR(dt_updated) AS dtyear FROM RET.tbl_Record WHERE MONTH(dt_updated) = 8 GROUP BY YEAR(dt_updated)) AUG
     ON JAN.dtyear = AUG.dtyear
    LEFT OUTER JOIN
    (SELECT COUNT(RET_record_id) AS TOTAL, YEAR(dt_updated) AS dtyear FROM RET.tbl_Record WHERE MONTH(dt_updated) = 9 GROUP BY YEAR(dt_updated)) SEP
     ON JAN.dtyear = SEP.dtyear
    LEFT OUTER JOIN
    (SELECT COUNT(RET_record_id) AS TOTAL, YEAR(dt_updated) AS dtyear FROM RET.tbl_Record WHERE MONTH(dt_updated) = 10 GROUP BY YEAR(dt_updated)) OCT
     ON JAN.dtyear = OCT.dtyear
    LEFT OUTER JOIN
    (SELECT COUNT(RET_record_id) AS TOTAL, YEAR(dt_updated) AS dtyear FROM RET.tbl_Record WHERE MONTH(dt_updated) = 11 GROUP BY YEAR(dt_updated)) NOV
     ON JAN.dtyear = NOV.dtyear
    LEFT OUTER JOIN
    (SELECT COUNT(RET_record_id) AS TOTAL, YEAR(dt_updated) AS dtyear FROM RET.tbl_Record WHERE MONTH(dt_updated) = 12 GROUP BY YEAR(dt_updated)) [DEC]
     ON JAN.dtyear = [DEC].dtyear

返回每年的记录

3 个答案: