Как написать Unpivot запрос в Main Query? - PullRequest
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Как написать Unpivot запрос в Main Query?

1 голос
/ 27 января 2020

У меня есть основной запрос, и там есть столбцы, которые вводят данные. Мне нужно преобразовать эти столбцы в один столбец, но я могу сохранить другие элементы в запросе как есть. Он записывает запрос данных UNPIVOT с основным для преобразования этих отдельных столбцов.

Из нижеследующего запроса STRING_ATTR1 - STRING_ATTR20 (все 20) должен быть UNPIVOT и представлен в виде 2 столбцов, один из которых содержит «String Names» (т. Е. STRING_ATTR1 , STRING_ATTR2 и т. Д. c) и 2-й столбец «Строковые данные», в котором содержатся фактические неотклоненные данные.

Пожалуйста, помогите! 

SELECT
[AGG_ELEMENT].[I_COUNT] AS [ELEMENT I COUNT],
[AGG_ELEMENT].[E_TIME_SUM] AS [ELEMENT E TIME],
[AGG_ELEMENT].[A_TIME_SUM] AS [ELEMENT A TIME],
[AGG_ELEMENT].[I_TIME_SUM] AS [ELEMENT I TIME],
[AGG_ELEMENT].[O_COUNT] AS [OPS COUNT],
[AGG_ELEMENT].[R_TIME_SUM] AS [R TIME],
[AGG_ELEMENT].[M_COUNT] AS [MSG COUNT],
[AGG_ELEMENT].[SE_COUNT] AS [SE COUNT],
[AGG_ELEMENT].[UE_COUNT] AS [UE COUNT],
[USERS].[ID] AS [USER ID],
[USERS].[LOGIN] AS [USER LOGIN],
[USERS].[DOMAIN] AS [USER DOMAIN],
[USERS].[NAME] AS [USER NAME],
[USERS].[STRING_ATTR1] AS [STRING_ATTR1],
[USERS].[STRING_ATTR2] AS [STRING_ATTR2],
[USERS].[STRING_ATTR3] AS [STRING_ATTR3],
[USERS].[STRING_ATTR4] AS [STRING_ATTR4],
[USERS].[STRING_ATTR5] AS [STRING_ATTR5],
[USERS].[STRING_ATTR6] AS [STRING_ATTR6],
[USERS].[STRING_ATTR7] AS [STRING_ATTR7],
[USERS].[STRING_ATTR8] AS [STRING_ATTR8],
[USERS].[STRING_ATTR9] AS [STRING_ATTR9],
[USERS].[STRING_ATTR10] AS [STRING_ATTR10],
[USERS].[STRING_ATTR11] AS [STRING_ATTR11],
[USERS].[STRING_ATTR12] AS [STRING_ATTR12],
[USERS].[STRING_ATTR13] AS [STRING_ATTR13],
[USERS].[STRING_ATTR14] AS [STRING_ATTR14],
[USERS].[STRING_ATTR15] AS [STRING_ATTR15],
[USERS].[STRING_ATTR16] AS [STRING_ATTR16],
[USERS].[STRING_ATTR17] AS [STRING_ATTR17],
[USERS].[STRING_ATTR18] AS [STRING_ATTR18],
[USERS].[STRING_ATTR19] AS [STRING_ATTR19],
[USERS].[STRING_ATTR20] AS [STRING_ATTR20],
[DAY].[TIMESTAMP] AS [DATE DAY],
[COMPUTER].[DOMAIN_NAME] AS [DOMAIN NAME],
[COMPUTER].[COMPUTER_NAME] AS [COMPUTER NAME],
[APPLICATION].[NAME] AS [APPLICATION NAME],
[MODULE].[NAME] AS [MODULE NAME],
[SCREEN].[NAME] AS [SCREEN NAME],
[SCREEN_TYPE].[NAME] AS [SCREEN TYPE]
FROM [AGG_ELEMENT] [AGG_ELEMENT]
LEFT JOIN [USERS] [USERS] ON ([AGG_ELEMENT].[USER_ID] = [USERS].[ID])
LEFT JOIN [DAY] [DAY] ON ([AGG_ELEMENT].[DAY_ID] = [DAY].[ID])
LEFT JOIN [COMPUTER] [COMPUTER] ON ([AGG_ELEMENT].[COMPUTER_ID] = [COMPUTER].[ID])
LEFT JOIN [APPLICATION] [APPLICATION] ON ([AGG_ELEMENT].[APPLICATION_ID] = [APPLICATION].[ID])
LEFT JOIN [MODULE] [MODULE] ON ([AGG_ELEMENT].[MODULE_ID] = [MODULE].[ID])
LEFT JOIN [SCREEN] [SCREEN] ON ([AGG_ELEMENT].[SCREEN_ID] = [SCREEN].[ID])
LEFT JOIN [SCREEN_TYPE] [SCREEN_TYPE] ON ([AGG_ELEMENT].[SCREEN_TYPE] = [SCREEN_TYPE].[ID])
WHERE
[DAY].[TIMESTAMP] BETWEEN '10/1/2019' AND '12/31/2019'

1 Ответ

0 голосов
/ 27 января 2020

Просто используйте OUTER APPLY: 

SELECT v.*, . . .
FROM . . . OUTER APPLY
     (VALUES ('ATTR1', USERS.STRING_ATTR1),
             ('ATTR2', USERS.STRING_ATTR2),
             ('ATTR3', USERS.STRING_ATTR3),
              . . .
     ) v(which, val)
WHERE [DAY].[TIMESTAMP] BETWEEN '2019-10-01' AND '2019-12-31'
...