SQL Server: рекурсивный CTE? Создание отчета из организационной структуры

Question

Надеюсь, кто-то может мне помочь. Я хочу иметь отчет с расчетами для организационной структуры.

CREATE TABLE Organistation 
    (
    KeySubCompany NUMERIC(12, 0) , 
    O1 VARCHAR(255) , 
    O2 VARCHAR(255) , 
    O3 VARCHAR(255) , 
    O4 VARCHAR(255) , 
    O5 VARCHAR(255) , 
    O6 VARCHAR(255) , 
    O7 VARCHAR(255) , 
    O8 VARCHAR(255) , 
    O9 VARCHAR(255) , 
    O10 VARCHAR(255) , 
    O11 VARCHAR(255) , 
    O12 VARCHAR(255) 
) 

INSERT INTO dbo.Organistation 
      (KeySubCompany, O1, O2, O3, O4, O5, O6, O7, O8, O9, O10, O11, O12) 
VALUES (1, 'World', 'Europe', 'Germany', 'Berlin', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), 
      (2, 'World', 'Europe', 'Germany', 'Hamburg', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), 
      (3, 'World', 'Europe', 'Italy', 'Rom', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), 
      (4, 'World', 'Europe', 'Italy', 'Neapel', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), 
      (5, 'World', 'Europe', 'Germany', 'Dresden', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), 
      (6, 'World', 'North America', 'Canada', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL), 
      (7, 'World', 'North America', 'USA', 'New York', NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL)   


CREATE TABLE COMPANY 
    (
    KeyCompany NUMERIC(12, 0) , 
    NAME VARCHAR(255) , 
    viewdepth INTEGER 
) 


INSERT INTO dbo.COMPANY 
      (KeyCompany, NAME, viewdepth) 
VALUES (1, 'Main', 2) 

CREATE TABLE SUBCOMPANY 
    (
    KeySubCompany NUMERIC(12, 0) , 
    KeyCompany NUMERIC(12, 0) , 
    NameSubCompany VARCHAR(255) 
) 


INSERT INTO dbo.SUBCOMPANY 
      (KeySubCompany, KeyCompany, NameSubCompany) 
VALUES (1, 1, '1_SubCompany'), 
      (2, 1, '2_SubCompany'), 
      (3, 1, '3_SubCompany'), 
      (4, 1, '4_SubCompany'), 
      (5, 1, '5_SubCompany'), 
      (6, 1, '6_SubCompany'), 
      (7, 1, '7_SubCompany') 

CREATE TABLE EMPLOYEES 
    (
    EMPLOYID NUMERIC(12, 0) , 
    KeySubCompany NUMERIC(12, 0) , 
    NAME VARCHAR(255) 
) 


INSERT INTO dbo.EMPLOYEES 
      (EMPLOYID, KeySubCompany, NAME) 
VALUES (1, 1, 'Winny'), 
      (1, 1, 'Justin'), 
      (1, 3, 'Mary'), 
      (1, 4, 'Leon'), 
      (1, 4, 'Marcy'), 
      (1, 7, 'Peter') 

Мой желаемый результат:

В таблице Company я хочу, чтобы иметь возможность настроить глубину структуры организации в моем докладе (на глубине зрения момент 3)

Мое решение на данный момент:

WITH CompanyRollup 
    AS (SELECT C.KeyCompany , 
        CASE WHEN (GROUPING(O.O1) = 1) THEN '' 
         ELSE O.O1 
        END AS O1 , 
        NULL AS O2 , 
        NULL AS O3 , 
        NULL AS O4 , 
        NULL AS O5 , 
        NULL AS O6 , 
        NULL AS O7 , 
        NULL AS O8 , 
        NULL AS O9 , 
        NULL AS O10 , 
        NULL AS O11 , 
        NULL AS O12 , 
        1 AS viewDepth 
     FROM  dbo.COMPANY C 
        INNER JOIN dbo.SUBCOMPANY SC ON SC.KeyCompany = C.KeyCompany 
                AND (C.viewdepth + 1) = 1 
        INNER JOIN dbo.Organistation O ON O.KeySubCompany = SC.KeySubCompany 
     GROUP BY C.KeyCompany , 
        O.O1 
        WITH ROLLUP 
     UNION 
     SELECT C.KeyCompany , 
        CASE WHEN (GROUPING(O.O1) = 1) THEN '' 
         ELSE O.O1 
        END AS O1 , 
        CASE WHEN (GROUPING(O.O2) = 1) THEN '' 
         ELSE O.O2 
        END AS O2 , 
        NULL AS O3 , 
        NULL AS O4 , 
        NULL AS O5 , 
        NULL AS O6 , 
        NULL AS O7 , 
        NULL AS O8 , 
        NULL AS O9 , 
        NULL AS O10 , 
        NULL AS O11 , 
        NULL AS O12 , 
        2 AS viewDepth 
     FROM  dbo.COMPANY C 
        INNER JOIN dbo.SUBCOMPANY SC ON SC.KeyCompany = C.KeyCompany 
                AND (C.viewdepth + 1) = 2 
        INNER JOIN dbo.Organistation O ON O.KeySubCompany = SC.KeySubCompany 
     GROUP BY C.KeyCompany , 
        O.O1 , 
        O.O2 
        WITH ROLLUP 
     UNION 
     SELECT C.KeyCompany , 
        CASE WHEN (GROUPING(O.O1) = 1) THEN '' 
         ELSE O.O1 
        END AS O1 , 
        CASE WHEN (GROUPING(O.O2) = 1) THEN '' 
         ELSE O.O2 
        END AS O2 , 
        CASE WHEN (GROUPING(O.O3) = 1) THEN '' 
         ELSE O.O3 
        END AS O3 , 
        NULL AS O4 , 
        NULL AS O5 , 
        NULL AS O6 , 
        NULL AS O7 , 
        NULL AS O8 , 
        NULL AS O9 , 
        NULL AS O10 , 
        NULL AS O11 , 
        NULL AS O12 , 
        3 AS viewDepth 
     FROM  dbo.COMPANY C 
        INNER JOIN dbo.SUBCOMPANY SC ON SC.KeyCompany = C.KeyCompany 
                AND (C.viewdepth + 1) = 3 
        INNER JOIN dbo.Organistation O ON O.KeySubCompany = SC.KeySubCompany 
     GROUP BY C.KeyCompany , 
        O.O1 , 
        O.O2 , 
        O.O3 
        WITH ROLLUP 
     ) 

SELECT CR.KeyCompany , 
     SUM(SE.EMPLOYID) CountEmployees , 
     CR.O1 , 
     NULL AS O2, 
     NULL AS O3, 
     NULL AS O4, 
     NULL AS O5, 
     NULL AS O6, 
     NULL AS O7, 
     NULL AS O8, 
     NULL AS O9, 
     NULL AS O10, 
     NULL AS O11, 
     NULL AS O12 
FROM CompanyRollup CR 
     INNER JOIN (SELECT DISTINCT 
          KeyCompany , 
          EMPLOYID 
        FROM dbo.EMPLOYEES E 
          INNER JOIN dbo.SUBCOMPANY SSC ON SSC.KeySubCompany = E.KeySubCompany 
        ) SE ON SE.KeyCompany = CR.KeyCompany 
     INNER JOIN (SELECT SSSC.KeyCompany , 
          SO.* 
        FROM dbo.SUBCOMPANY SSSC 
          INNER JOIN dbo.Organistation SO ON SSSC.KeySubCompany = SO.KeySubCompany 
        ) SOO ON SOO.KeyCompany = CR.KeyCOmpany 
          AND (CR.O1 = '' 
            OR ISNULL(CR.O1, '') = ISNULL(SOO.O1, '') 
           ) 
WHERE CR.Viewdepth = 1 
GROUP BY CR.KeyCompany , 
     CR.O1 

    UNION 
    SELECT CR.KeyCompany , 
     SUM(SE.EMPLOYID) CountEmployees , 
     CR.O1 , 
     CR.O2 , 
     NULL AS O3, 
     NULL AS O4, 
     NULL AS O5, 
     NULL AS O6, 
     NULL AS O7, 
     NULL AS O8, 
     NULL AS O9, 
     NULL AS O10, 
     NULL AS O11, 
     NULL AS O12 
FROM CompanyRollup CR 
     INNER JOIN (SELECT DISTINCT 
          KeyCompany , 
          EMPLOYID 
        FROM dbo.EMPLOYEES E 
          INNER JOIN dbo.SUBCOMPANY SSC ON SSC.KeySubCompany = E.KeySubCompany 
        ) SE ON SE.KeyCompany = CR.KeyCompany 
     INNER JOIN (SELECT SSSC.KeyCompany , 
          SO.* 
        FROM dbo.SUBCOMPANY SSSC 
          INNER JOIN dbo.Organistation SO ON SSSC.KeySubCompany = SO.KeySubCompany 
        ) SOO ON SOO.KeyCompany = CR.KeyCOmpany 
          AND (CR.O1 = '' 
            OR ISNULL(CR.O1, '') = ISNULL(SOO.O1, '') 
           )AND (CR.O2 = '' 
            OR ISNULL(CR.O2, '') = ISNULL(SOO.O2, '') 
           ) 
WHERE CR.Viewdepth = 2 
GROUP BY CR.KeyCompany , 
     CR.O1, 
     CR.O2 
    UNION 
    SELECT CR.KeyCompany , 
     SUM(SE.EMPLOYID) CountEmployees , 
     CR.O1 AS O1, 
     CR.O2 AS O2, 
     CR.O3 AS O3, 
     NULL AS O4, 
     NULL AS O5, 
     NULL AS O6, 
     NULL AS O7, 
     NULL AS O8, 
     NULL AS O9, 
     NULL AS O10, 
     NULL AS O11, 
     NULL AS O12 
FROM CompanyRollup CR 
     INNER JOIN (SELECT DISTINCT 
          KeyCompany , 
          EMPLOYID 
        FROM dbo.EMPLOYEES E 
          INNER JOIN dbo.SUBCOMPANY SSC ON SSC.KeySubCompany = E.KeySubCompany 
        ) SE ON SE.KeyCompany = CR.KeyCompany 
     INNER JOIN (SELECT SSSC.KeyCompany , 
          SO.* 
        FROM dbo.SUBCOMPANY SSSC 
          INNER JOIN dbo.Organistation SO ON SSSC.KeySubCompany = SO.KeySubCompany 
        ) SOO ON SOO.KeyCompany = CR.KeyCOmpany 
          AND (CR.O1 = '' 
            OR ISNULL(CR.O1, '') = ISNULL(SOO.O1, '') 
           )AND (CR.O2 = '' 
            OR ISNULL(CR.O2, '') = ISNULL(SOO.O2, '') 
           ) AND (CR.O3 = '' 
            OR ISNULL(CR.O3, '') = ISNULL(SOO.O3, '') 
           ) 
WHERE CR.Viewdepth = 3 
GROUP BY CR.KeyCompany , 
     CR.O1, 
     CR.O2, 
     CR.O3.... UNION.... UNTIL O12 

..... и т. Д. До O12

Как вы можете видеть, это почти только копирование/вставка только структура организации немного отличается.

Есть ли способ создать «чистую» версию для создания отчета?

Я создал «простой», который имеет ту же структуру, что и моя база данных/таблицы, которые у меня есть на данный момент, поэтому изменить структуру таблицы невозможно.

Заранее спасибо.

Перед тем, как забыть SQL Fiddle Demo

Answer 1

Посмотрите на приведенные ниже вещи. это самый простой способ сделать многоуровневый список, который я знаю. Если вы не можете изменить основную структуру таблицы, все же проще подготовить свои данные в таблицах #temp, чтобы сделать 10 слоев вложенных CTE.

SQLFiddle

CREATE TABLE Grp_lvl_1 (
    Id INT IDENTITY(1,1) NOT NULL, 
    Name NVARCHAR(50)) 

CREATE TABLE Grp_lvl_2 (
    Id INT IDENTITY(1,1) NOT NULL, 
    lvl_1_Id INT, 
    Name NVARCHAR(50)) 

INSERT Grp_lvl_1 (Name) VALUES 
('Continent_1'), 
('Continent_2'), 
('Continent_3') 

INSERT Grp_lvl_2 (lvl_1_Id, Name) VALUES 
(1,'Country_1'), 
(1,'Country_2'), 
(1,'Country_3'), 
(2,'Country_4'), 
(2,'Country_5'), 
(2,'Country_6'), 
(3,'Country_7'), 
(3,'Country_8'), 
(3,'Country_9') 

SELECT Grp_lvl_1.Name col1, Grp_lvl_2.Name col2 
FROM Grp_lvl_1 INNER JOIN 
Grp_lvl_2 ON Grp_lvl_1.Id = Grp_lvl_2.lvl_1_Id 

Answer 2

Нет, нет необходимости в рекурсивном CTE, ROLLUP может получить отчет

Если вы используете SQLServer 2008 или лучше список состояния в HAVING может быть заменен по одному условию, используя GROUPING_ID, он возвращает уровень группировки в ROLLUP, CUBE и GROUPING SETS, как значение int битового массива, поэтому значение нужно преобразовать, растровое изображение находится в том же orde r столбцов, поэтому тем меньше деталей, которые вы хотите увидеть выше, будет значением GROUPING_ID для использования в качестве нижней границы.

SELECT c.KeyCompany 
    , COUNT(e.EMPLOYID) CountEmployees 
    , o.o1, o.o2, o.o3, o.o4, o.o5, o.o6 
    , o.o7, o.o8, o.o9, o.o10, o.o11, o.o12 
FROM Organistation o 
     INNER JOIN SUBCOMPANY s ON o.KeySubCompany = s.KeySubCompany 
     INNER JOIN COMPANY c ON s.KeyCompany = c.KeyCompany 
     INNER JOIN EMPLOYEES e ON o.KeySubCompany = e.KeySubCompany 
GROUP BY c.KeyCompany, RollUp(o.o1, o.o2, o.o3, o.o4, o.o5, o.o6 
          , o.o7, o.o8, o.o9, o.o10, o.o11, o.o12) 
HAVING GROUPING(o.o1) = 0 
    AND GROUPING_ID(o.o1, o.o2, o.o3, o.o4, o.o5, o.o6 
       , o.o7, o.o8, o.o9, o.o10, o.o11, o.o12) 
    > power(2, 11 - (MAX(c.viewdepth) + 1)) 
ORDER BY COUNT(e.EMPLOYID) 

SQLFiddle демо

Если вы используете SQLServer 2005 или более старый VERSIONE запрос будет более многословным

SELECT c.KeyCompany 
    , COUNT(e.EMPLOYID) CountEmployees 
    , o.o1, o.o2, o.o3, o.o4, o.o5, o.o6 
    , o.o7, o.o8, o.o9, o.o10, o.o11, o.o12 
FROM Organistation o 
     INNER JOIN SUBCOMPANY s ON o.KeySubCompany = s.KeySubCompany 
     INNER JOIN COMPANY c ON s.KeyCompany = c.KeyCompany 
     INNER JOIN EMPLOYEES e ON o.KeySubCompany = e.KeySubCompany 
GROUP BY c.KeyCompany, RollUp(o.o1, o.o2, o.o3, o.o4, o.o5, o.o6 
          , o.o7, o.o8, o.o9, o.o10, o.o11, o.o12) 
HAVING GROUPING(o.o1) = 0 
    AND (GROUPING(o.o1) = 1 OR (GROUPING(o.o1) = 0 AND MAX(c.viewdepth) + 1 >= 1)) 
    AND (GROUPING(o.o2) = 1 OR (GROUPING(o.o2) = 0 AND MAX(c.viewdepth) + 1 >= 2)) 
    AND (GROUPING(o.o3) = 1 OR (GROUPING(o.o3) = 0 AND MAX(c.viewdepth) + 1 >= 3)) 
    AND (GROUPING(o.o4) = 1 OR (GROUPING(o.o4) = 0 AND MAX(c.viewdepth) + 1 >= 4)) 
    AND (GROUPING(o.o5) = 1 OR (GROUPING(o.o5) = 0 AND MAX(c.viewdepth) + 1 >= 5)) 
    AND (GROUPING(o.o6) = 1 OR (GROUPING(o.o6) = 0 AND MAX(c.viewdepth) + 1 >= 6)) 
    AND (GROUPING(o.o7) = 1 OR (GROUPING(o.o7) = 0 AND MAX(c.viewdepth) + 1 >= 7)) 
    AND (GROUPING(o.o8) = 1 OR (GROUPING(o.o8) = 0 AND MAX(c.viewdepth) + 1 >= 8)) 
    AND (GROUPING(o.o9) = 1 OR (GROUPING(o.o9) = 0 AND MAX(c.viewdepth) + 1 >= 9)) 
    AND (GROUPING(o.o10) = 1 OR (Grouping(o.o10) = 0 
          AND MAX(c.viewdepth) + 1 >= 10)) 
    AND (GROUPING(o.o11) = 1 OR (GROUPING(o.o11) = 0 
          AND MAX(c.viewdepth) + 1 >= 11)) 
    AND (GROUPING(o.o12) = 1 OR (GROUPING(o.o12) = 0 
          AND MAX(c.viewdepth) + 1 >= 12)) 
ORDER BY COUNT(e.EMPLOYID) 

Хитрость заключается в HAVING, линии

(GROUPING(o.o4) = 1 OR (GROUPING(o.o4) = 0 AND MAX(c.viewdepth) + 1 >= 4)) 

удалить все строки, возвращенные ROLLUP, которые не сгруппированы (Grouping(o.o4) = 1) или находятся на более низкой глубине, чем макс (GROUPING(o.o4) = 0 AND MAX(c.viewdepth) + 1 >= 4)).

SQLFiddle demo