データが変更されたときにデータ値を返すための照会を探す

データベースサーバーの種類= SQL Server 2012 SP2データが変更されたときにデータ値を返すための照会を探す

ここにソーステーブルがあります。

CREATE TABLE a 
    ( 
    e_id INT, 
    r_id INT, 
    d_id INT, 
    s_id INT 
); 

CREATE TABLE r 
    ( 
    id INT, 
    NAME VARCHAR(50) 
); 

CREATE TABLE d 
    ( 
    id  INT, 
    calldate DATE 
); 

CREATE TABLE e 
    ( 
    id  INT, 
    NAME VARCHAR(50), 
    initial VARCHAR(5) 
); 

CREATE TABLE s 
    ( 
    id  INT, 
    specialty VARCHAR(50) 
); 

INSERT INTO a 
VALUES  (8, 
      13, 
      9, 
      13), 
      (8, 
      13, 
      10, 
      13), 
      (8, 
      13, 
      11, 
      13), 
      (8, 
      13, 
      12, 
      13), 
      (8, 
      13, 
      13, 
      13), 
      (8, 
      13, 
      14, 
      13), 
      (10, 
      13, 
      15, 
      13), 
      (10, 
      13, 
      16, 
      13), 
      (10, 
      13, 
      17, 
      13), 
      (16, 
      13, 
      18, 
      13), 
      (16, 
      13, 
      19, 
      13), 
      (16, 
      13, 
      20, 
      13), 
      (9, 
      13, 
      21, 
      13), 
      (9, 
      13, 
      22, 
      13), 
      (9, 
      13, 
      23, 
      13), 
      (9, 
      13, 
      24, 
      13), 
      (16, 
      13, 
      25, 
      13), 
      (16, 
      13, 
      26, 
      13); 
INSERT INTO a 
VALUES 
      (10,22,9,13), 
      (10,22,10,13), 
      (10,22,11,13), 
      (10,22,12,13), 
      (10,22,13,13), 
      (16,22,14,13), 
      (16,22,15,13), 
      (16,22,16,13), 
      (16,22,17,13), 
      (9,22,18,13), 
      (9,22,19,13), 
      (9,22,20,13), 
      (18,22,21,13), 
      (18,22,22,13), 
      (10,22,23,13), 
      (10,22,24,13), 
      (9,22,25,13), 
      (9,22,26,13); 

INSERT INTO r 
VALUES  (13, 
      'Primary'), 
      (22, 
      'Secondary'), 
      (33, 
      'Prim Trd'), 
      (44, 
      'Sec Td'); 

INSERT INTO e 
VALUES  (8, 
      'Jack', 
      'JM'), 
      (9, 
      'Ace', 
      'AQ'), 
      (10, 
      'Mike', 
      'MM'), 
      (16, 
      'George', 
      'GH'), 
      (18 ,'Bill', 'BK' ); 

INSERT INTO s 
VALUES  (13, 
      'Pediatric'), 
      (28, 
      'EMT'), 
      (55, 
      'ER'); 

INSERT INTO d 
VALUES  (9 , '2015-01-09'), 
      (10 , '2015-01-10'), 
      (11 , '2015-01-11'), 
      (12 , '2015-01-12'), 
      (13 , '2015-01-13'), 
      (14 , '2015-01-14'), 
      (15 , '2015-01-15'), 
      (16 , '2015-01-16'), 
      (17 , '2015-01-17'), 
      (18 , '2015-01-18'), 
      (19 , '2015-01-19'), 
      (20 , '2015-01-20'), 
      (21 , '2015-01-21'), 
      (22 , '2015-01-22'), 
      (23 , '2015-01-23'), 
      (24 , '2015-01-24'), 
      (25 , '2015-01-25'), 
      (26 , '2015-01-26'), 
      (27 , '2015-01-27'), 
      (28 , '2015-01-28'), 
      (29 , '2015-01-29'), 
      (30 , '2015-01-30')

表Aは、表D、E、R、およびS

表

║ e_id │ r_id │ d_id │ s_id ║ 
╠══════╪══════╪══════╪══════╣ 
║ 8 │ 13 │ 9 │ 13 ║ 
║ 8 │ 13 │ 10 │ 13 ║ 
║ 8 │ 13 │ 11 │ 13 ║ 
║ 8 │ 13 │ 12 │ 13 ║ 
║ 8 │ 13 │ 13 │ 13 ║ 
║ 8 │ 13 │ 14 │ 13 ║ 
║ 10 │ 13 │ 15 │ 13 ║ 
║ 10 │ 13 │ 16 │ 13 ║ 
║ 10 │ 13 │ 17 │ 13 ║ 
║ 16 │ 13 │ 18 │ 13 ║ 
║ 16 │ 13 │ 19 │ 13 ║ 
║ 16 │ 13 │ 20 │ 13 ║ 
║ 9 │ 13 │ 21 │ 13 ║ 
║ 9 │ 13 │ 22 │ 13 ║ 
║ 9 │ 13 │ 23 │ 13 ║ 
║ 9 │ 13 │ 24 │ 13 ║ 
║ 16 │ 13 │ 25 │ 13 ║ 
║ 16 │ 13 │ 26 │ 13 ║ 
║ 10 │ 22 │ 9 │ 13 ║ 
║ 10 │ 22 │ 10 │ 13 ║ 
║ 10 │ 22 │ 11 │ 13 ║ 
║ 10 │ 22 │ 12 │ 13 ║ 
║ 10 │ 22 │ 13 │ 13 ║ 
║ 16 │ 22 │ 14 │ 13 ║ 
║ 16 │ 22 │ 15 │ 13 ║ 
║ 16 │ 22 │ 16 │ 13 ║ 
║ 16 │ 22 │ 17 │ 13 ║ 
║ 9 │ 22 │ 18 │ 13 ║ 
║ 9 │ 22 │ 19 │ 13 ║ 
║ 9 │ 22 │ 20 │ 13 ║ 
║ 18 │ 22 │ 21 │ 13 ║ 
║ 18 │ 22 │ 22 │ 13 ║ 
║ 10 │ 22 │ 23 │ 13 ║ 
║ 10 │ 22 │ 24 │ 13 ║ 
║ 9 │ 22 │ 25 │ 13 ║ 
║ 9 │ 22 │ 26 │ 13 ║

表D

║ id │ calldate ║ 
╠════╪════════════╣ 
║ 9 │ 2015-01-09 ║ 
║ 10 │ 2015-01-10 ║ 
║ 11 │ 2015-01-11 ║ 
║ 12 │ 2015-01-12 ║ 
║ 13 │ 2015-01-13 ║ 
║ 14 │ 2015-01-14 ║ 
║ 15 │ 2015-01-15 ║ 
║ 16 │ 2015-01-16 ║ 
║ 17 │ 2015-01-17 ║ 
║ 18 │ 2015-01-18 ║ 
║ 19 │ 2015-01-19 ║ 
║ 20 │ 2015-01-20 ║ 
║ 21 │ 2015-01-21 ║ 
║ 22 │ 2015-01-22 ║ 
║ 23 │ 2015-01-23 ║ 
║ 24 │ 2015-01-24 ║ 
║ 25 │ 2015-01-25 ║ 
║ 26 │ 2015-01-26 ║ 
║ 27 │ 2015-01-27 ║ 
║ 28 │ 2015-01-28 ║ 
║ 29 │ 2015-01-29 ║ 
║ 30 │ 2015-01-30 ║

表E

を連結する連結テーブルであります

╔════╤════════╤═════════╗ 
║ id │ name │ initial ║ 
╠════╪════════╪═════════╣ 
║ 8 │ Jack │ JM  ║ 
║ 9 │ Ace │ AQ  ║ 
║ 10 │ Mike │ MM  ║ 
║ 16 │ George │ GH  ║ 
║ 18 │ Bill │ BK  ║ 
╚════╧════════╧═════════╝

表R

╔════╤═══════════╗ 
║ id │ name  ║ 
╠════╪═══════════╣ 
║ 13 │ Primary ║ 
║ 22 │ Secondary ║ 
║ 33 │ Prim Trd ║ 
║ 44 │ Sec Td ║ 
╚════╧═══════════╝

表ここでS

|ID | Specialty | 
|---+-----------| 
|13 | Pediatric | 
|28 | EMT  | 
|55 | ER  |

私が考えていたクエリが動作しますが、エラーを生成します。ここでは

SELECT d.calldate, 
     Max(CASE 
      WHEN s.id = 13 
        AND r.NAME = 'Primary' THEN (e.NAME) 
      END) AS [Primary], 
     Max(CASE 
      WHEN s.id = 13 
        AND r.NAME = 'Secondary' THEN (e.NAME) 
      END) AS [Secondary], 
     Max(CASE 
      WHEN s.id = 13 
        AND r.NAME = 'Primary' 
        AND ((e.id = (SELECT e1.id 
            FROM a a1 
             INNER JOIN e e1 
               ON e1.id = a1.e_id 
             INNER JOIN d d1 
               ON d1.id = a1.d_id 
             INNER JOIN s s1 
               ON s1.id = a1.s_id 
             INNER JOIN r r1 
               ON r1.id = a1.r_id 
            WHERE d1.calldate = CONVERT(DATE, 
                 Dateadd(dd, -1, 
                 d.calldate), 
                 101) 
             AND r1.NAME = 'Primary' 
             AND s1.id = 13)) 
         AND (e.id = (SELECT e1.id 
             FROM a a1 
              INNER JOIN e e1 
                ON e1.id = a1.e_id 
              INNER JOIN d d1 
                ON d1.id = a1.d_id 
              INNER JOIN s s1 
                ON s1.id = a1.s_id 
              INNER JOIN r r1 
                ON r1.id = a1.r_id 
             WHERE d1.calldate = CONVERT(DATE, Dateadd 
                  (dd, 1, 
d.calldate), 
101 
) 
AND r1.NAME = 'Primary' 
AND s1.id = 13))) THEN ' ' 
ELSE e.initial 
END) AS [PrimaryINIT], 
Max(CASE 
WHEN s.id = 13 
AND r.NAME = 'Secondary' 
AND (e.id = (SELECT e1.id 
FROM a a1 
INNER JOIN e e1 
ON e1.id = a1.e_id 
INNER JOIN d d1 
ON d1.id = a1.d_id 
INNER JOIN s s1 
ON s1.id = a1.s_id 
INNER JOIN r r1 
ON r1.id = a1.r_id 
WHERE d1.calldate = CONVERT(DATE, Dateadd(dd, -1, 
d.calldate), 
101) 
AND r1.NAME = 'Secondary' 
AND s1.id = 13) 
AND (e.id = (SELECT e1.id 
FROM a a1 
INNER JOIN e e1 
ON e1.id = a1.e_id 
INNER JOIN d d1 
ON d1.id = a1.d_id 
INNER JOIN s s1 
ON s1.id = a1.s_id 
INNER JOIN r r1 
ON r1.id = a1.r_id 
WHERE d1.calldate = CONVERT(DATE, Dateadd(dd, 1, 
d.calldate), 
101 
) 
AND r1.NAME = 'Secondary' 
AND s1.id = 13))) THEN ' ' 
ELSE e.initial 
END) AS [SecondaryINIT] 
FROM a 
     INNER JOIN e 
       ON e.id = a.e_id 
     INNER JOIN d 
       ON d.id = a.d_id 
     INNER JOIN s 
       ON s.id = a.s_id 
     INNER JOIN r 
       ON r.id = a.r_id 
WHERE Datepart(mm, d.calldate) = 1 
     AND Datepart(year, d.calldate) = 2015 
GROUP BY d.calldate

は、私たちが求めている結果がありますのクエリからです。

（初期列のみデータの変更前と後の列の値を返していることに注意してください）：クエリから

望ましい結果。

╔════════════╤═════════╤═══════════╤═════════╤═══════════╗ 
║ callDate │ Primary │ Secondary │ PrimINIT│ SeconINIT ║ 
╠════════════╪═════════╪═══════════╪═════════╪═══════════╣ 
║ 2015-01-09 │ Jack │ Mike  │ JM  │ MM  ║ 
║ 2015-01-10 │ Jack │ Mike  │   │   ║ 
║ 2015-01-11 │ Jack │ Mike  │   │   ║ 
║ 2015-01-12 │ Jack │ Mike  │   │   ║ 
║ 2015-01-13 │ Jack │ Mike  │   │ MM  ║ 
║ 2015-01-14 │ Jack │ George │ JM  │ GH  ║ 
║ 2015-01-15 │ Mike │ George │ MM  │   ║ 
║ 2015-01-16 │ Mike │ George │   │   ║ 
║ 2015-01-17 │ Mike │ George │ MM  │ GH  ║ 
║ 2015-01-18 │ George │ Ace  │ GH  │ AQ  ║ 
║ 2015-01-19 │ George │ Ace  │   │   ║ 
║ 2015-01-20 │ George │ Ace  │ GH  │ AQ  ║ 
║ 2015-01-21 │ Ace  │ Bill  │ AQ  │ BK  ║ 
║ 2015-01-22 │ Ace  │ Bill  │   │ BK  ║ 
║ 2015-01-23 │ Ace  │ Mike  │   │ MM  ║ 
║ 2015-01-24 │ Ace  │ Mike  │ AQ  │ MM  ║ 
║ 2015-01-25 │ George │ Ace  │ GH  │ AQ  ║ 
║ 2015-01-26 │ George │ Ace  │ GH  │ AQ  ║ 
╚════════════╧═════════╧═══════════╧═════════╧═══════════╝

出典

2016-07-05 CiberLover007

次の時間与えられたデータと結果を、これは非常に良い質問があるフォーマットのほかに適切な整形自分 – PaulH

を提供してください：完全なコードでテストシナリオ、自分の努力、期待される出力、明確な説明。 upvoteに値する！ – Shnugo

SQL Serverのどのバージョンですか？ – Shnugo

このようにそれを試してみてください。

WITH Pivoted AS 
(
    SELECT d.calldate AS calldate 
      ,MAX(CASE WHEN r.Name='Primary' THEN e.NAME END) AS [Primary] 
      ,MAX(CASE WHEN r.Name='Secondary' THEN e.NAME END) AS [Secondary] 
      ,MAX(CASE WHEN r.Name='Primary' THEN e.initial END) AS [PrimINIT] 
      ,MAX(CASE WHEN r.Name='Secondary' THEN e.initial END) AS [SeconINIT] 
    FROM a 
    INNER JOIN e ON a.e_id=e.id 
    INNER JOIN r ON a.r_id=r.id 
    INNER JOIN d ON a.d_id=d.id 
    INNER JOIN s ON a.s_id=s.id 
    GROUP BY d.calldate 
) 
,WithNeighbours AS 
(
    SELECT * 
      ,ISNULL(LAG([Primary]) OVER(ORDER BY calldate,[Primary]),'') AS PrevPrim 
      ,ISNULL(LAG([Secondary]) OVER(ORDER BY calldate,[Secondary]),'') AS PrevSecon 
      ,ISNULL(LEAD([Primary]) OVER(ORDER BY calldate,[Primary]),'') AS NxtPrim 
      ,ISNULL(LEAD([Secondary]) OVER(ORDER BY calldate,[Secondary]),'') AS NxtSecon 
    FROM Pivoted 
) 
SELECT calldate 
     ,[Primary] 
     ,[Secondary] 
     ,CASE WHEN [Primary]<>PrevPrim OR [Primary]<>NxtPrim THEN PrimINIT ELSE '' END AS PrimINIT 
     ,CASE WHEN [Secondary]<>PrevSecon OR [Secondary]<>NxtSecon THEN SeconINIT ELSE '' END AS SeconINIT 
FROM WithNeighbours 
ORDER BY calldate

+------------+---------+-----------+----------+-----------+ 
| calldate | Primary | Secondary | PrimINIT | SeconINIT | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-09 | Jack | Mike  | JM  | MM  | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-10 | Jack | Mike  |   |   | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-11 | Jack | Mike  |   |   | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-12 | Jack | Mike  |   |   | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-13 | Jack | Mike  |   | MM  | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-14 | Jack | George | JM  | GH  | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-15 | Mike | George | MM  |   | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-16 | Mike | George |   |   | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-17 | Mike | George | MM  | GH  | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-18 | George | Ace  | GH  | AQ  | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-19 | George | Ace  |   |   | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-20 | George | Ace  | GH  | AQ  | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-21 | Ace  | Bill  | AQ  | BK  | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-22 | Ace  | Bill  |   | BK  | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-23 | Ace  | Mike  |   | MM  | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-24 | Ace  | Mike  | AQ  | MM  | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-25 | George | Ace  | GH  | AQ  | 
+------------+---------+-----------+----------+-----------+ 
| 2015-01-26 | George | Ace  | GH  | AQ  | 
+------------+---------+-----------+----------+-----------+

出典

2016-07-05 22:27:01 Shnugo

素晴らしい仕事。質問LAGとLEADは何をしていますか？ – CiberLover007

@ CiberLover007は、順序付きリストのネイバーを見つけます。したがって、OVER句を指定する必要があります – Shnugo

データが変更されたときにデータ値を返すための照会を探す

答えて

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