SQL Server：匹配兩個表並按正確列的順序結果

Question

我有兩個表JOB和EMP ； 結構和值是這樣的：

CREATE TABLE JOB 
(
    JOBID SMALLINT UNIQUE NOT NULL,
    JOBNAME CHAR(15)
);

CREATE TABLE EMP
(
    EMPID SMALLINT, 
    JOBID SMALLINT, 
    SAL SMALLINT, 
    CITYID SMALLINT,
    YEAR SMALLINT,
    STATUS CHAR(1)
);

INSERT INTO JOB(JOBID, JOBNAME) 
VALUES (1, 'DEVELOPMENT'),
       (2, 'DEVELOPMENT'),
       (3, 'TESTING'),
       (4, 'TESTING'),
       (7, 'TESTING'),
       (9, 'RESEARCH'),
       (8, 'HR');

INSERT INTO EMP (EMPID , JOBID, SAL, CITYID, YEAR, STATUS) 
VALUES (100, 1, 1000, 10, 2015, 'A'),
       (200, 2, 2000, 10, 2015, 'A'),
       (300, 1, 2500, 20, 2015, 'A'),
       (400, 3, 1000, 10, 2016, 'A'),
       (500, 6, 3000, 10, 2015, 'E'),
       (600, 8, 1000, 30, 2015, 'A'),
       (700, 8, 2000, 10, 2015, 'E'),
       (800, 9, 1500, 10, 2015, 'A');

我想顯示所有工作名稱計數和平均工資； 對於作業名稱，如果作業 ID 不存在，則顯示 0

對於給定的輸入cityid ， YEAR和STATUS （ Emp表），采取所有jobid為每個jobname （從job表）和匹配Emp表，如果存在顯示count （計數的jobid存在於Emp表）和avgsal else 0為count和avgsal 。 Sal是根據Status計算的。 如果Status是 'A' Sal 轉到Status-A-Sal else Status-E-Sal 。 對於每個匹配的非零記錄，將“X”放在另一個字段中

對於Cityid 2015 年的第 10 年和第 20 年，輸出應如下所示。應首先顯示Status “A”的結果，然后顯示Status “E”。 在 result 中添加了狀態類型字段。

Cityid  Status-type jobname         count   STATUS      sal
--------------------------------------------------------------
10      STATUSA     development     2       X           1500
10      STATUSA     TESTING         0                   0
10      STATUSA     RESEARCH        1       X           1500 
10      STATUSA     HR              0                   0
10      total                       3                   0
10      STATUSE     development     0                   0
10      STATUSE     TESTING         0                   0
10      STATUSE     RESEARCH        0                   0 
10      STATUSE     HR              1        X          2000
10      total                       1                   2000

20      STATUSA     development     1        X          2500
20      STATUSA     TESTING         0                   0
20      STATUSA     RESEARCH        0                   0 
20      STATUSA     HR              0                   0
20      total                       1                   2500
20      STATUSE     development     0                   0
20      STATUSE     TESTING         0                   0
20      STATUSE     RESEARCH        0                   0 
20      STATUSE     HR              0                   0
20      total                       0                   0

如何帶來一個又一個的結果？

我試過這樣但它投擲

SELECT C.CITYID  AS CITYID,
           CASE WHEN P.STATUS ='A' THEN 'STATUSA' ELSE 'STATUSE' END AS STATUS_TYPE ,
           COALESCE(J.JOBNAME, 'TOTAL') AS JOBNAME,
           COUNT(CASE WHEN P.STATUS ='A' THEN P.CITYID END ) AS COUNT ,
           COALESCE(AVG(CAST(CASE WHEN P.STATUS = 'A' THEN P.SAL END AS DECIMAL(13,2)))/12 , 0) AS "AVG SAL",
           COUNT(CASE WHEN P.STATUS ='E' THEN P.CITYID END ) AS  COUNT  ,
           COALESCE(AVG(CAST(CASE WHEN P.STATUS = 'E' THEN P.SAL END AS DECIMAL(13,2)))/12 , 0) AS "AVG SAL"
    FROM JOB1 J
    CROSS JOIN 
            (SELECT DISTINCT CITYID 
                FROM EMP1  B WHERE CITYID = 10

            ) C
    LEFT JOIN EMP1 P ON P.JOBID = J.JOBID 
            AND  P.CITYID = C.CITYID and
            YEAR = 2015
        GROUP BY ROLLUP(C.CITYID,  J.JOBNAME );

錯誤：列“EMP1.STATUS”在選擇列表中無效，因為它不包含在聚合函數或 GROUP BY 子句中。

Answer 1

IF OBJECT_ID('tempdb..#JOB') IS NOT NULL
    DROP TABLE #JOB

CREATE TABLE #JOB 
(
    JOBID SMALLINT UNIQUE NOT NULL,
    JOBNAME CHAR(15)
);

IF OBJECT_ID('tempdb..#EMP') IS NOT NULL
    DROP TABLE #EMP

CREATE TABLE #EMP
(
    EMPID SMALLINT, 
    JOBID SMALLINT, 
    SAL SMALLINT, 
    CITYID SMALLINT,
    YEAR SMALLINT,
    STATUS CHAR(1)
);

INSERT INTO #JOB(JOBID, JOBNAME) 
VALUES (1, 'DEVELOPMENT'),
       (2, 'DEVELOPMENT'),
       (3, 'TESTING'),
       (4, 'TESTING'),
       (7, 'TESTING'),
       (9, 'RESEARCH'),
       (8, 'HR');

INSERT INTO #EMP (EMPID , JOBID, SAL, CITYID, YEAR, STATUS) 
VALUES (100, 1, 1000, 10, 2015, 'A'),
       (200, 2, 2000, 10, 2015, 'A'),
       (300, 1, 2500, 20, 2015, 'A'),
       (400, 3, 1000, 10, 2016, 'A'),
       (500, 6, 3000, 10, 2015, 'E'),
       (600, 8, 1000, 30, 2015, 'A'),
       (700, 8, 2000, 10, 2015, 'E'),
       (800, 9, 1500, 10, 2015, 'A');

;with cteJobDict as (
    select
            distinct
            j.JOBNAME
    from
            #JOB j
)
,cteStatusDict as(
    select
            distinct STATUS
    from
            #EMP e
),cteCityDict as (
    select
            distinct CITYID
    from
            #EMP
)
,cteJobStatusCityMatrix as(
    select
            *
    from
            cteJobDict
    cross apply cteStatusDict
    cross apply cteCityDict
)
,cteEmpWithJobName as (
    select
            e.*
            ,j.JOBNAME
    from
            #EMP e
    join    #JOB j on j.JOBID=e.JOBID
), cteData as (
SELECT
        m.CITYID
        ,CASE WHEN m.STATUS ='A' THEN 'STATUSA' ELSE 'STATUSE' end as [Status-type]
        ,CASE WHEN m.STATUS ='A' THEN 1 ELSE 3 end as [Status-order]
        ,m.JOBNAME
        ,count(distinct e.EMPID) count
        ,iif(count(distinct e.EMPID)>0,'X','') status
        ,isnull(avg(e.sal),0) sal
FROM
        cteJobStatusCityMatrix m
left join cteEmpWithJobName e on e.CITYID=m.CITYID and e.STATUS=m.STATUS and e.JOBNAME=m.JOBNAME and e.YEAR=2015
where
        m.CITYID in (10,20)
group by
        m.CITYID
        ,m.STATUS
        ,m.JOBNAME
union
SELECT
        m.CITYID
        ,'total' as [Status-type]
        ,CASE WHEN m.STATUS ='A' THEN 2 ELSE 4 end as [Status-order]
        ,null
        ,count(distinct e.EMPID) count
        ,iif(count(distinct e.EMPID)>0,'X','') status
        ,isnull(avg(e.sal),0) sal
FROM
        cteJobStatusCityMatrix m
left join cteEmpWithJobName e
            on e.CITYID=m.CITYID
            and e.STATUS=m.STATUS
            and e.JOBNAME=m.JOBNAME
            and e.YEAR=2015 -- here goes year
where
        m.CITYID in (10,20) -- here goes cityid
group by
        m.CITYID
        ,m.STATUS)
select
        CITYID
        ,[Status-type]
        ,JOBNAME
        ,count
        ,status
        ,sal
from
        cteData
order by
        CITYID
        ,[Status-order]