在語句中返回 2 個計數結果

Question

我有兩個單獨的查詢來計算我的數據庫中的異常數。 我需要在同一個查詢中返回兩個結果，如何正確地將它們組合在一起？

SELECT (
    IF EXISTS (SELECT *
        FROM
            exception AS ex
        INNER JOIN
            exceptionDefinition AS ed ON ex.exceptionDefId = ed.exceptionDefId
        WHERE
            ex.customerId='{5B65755C-3B66-434E-AC03-942004E9A27A}'
            AND ex.loanId IS NULL
            AND ex.exceptionState LIKE 'Y'
            AND ex.statusType LIKE 'required'
            AND ed.computationType LIKE 'computed'
        GROUP BY
            ex.customerId,
            ed.computationType,
            ex.exceptionState)
        BEGIN 
            SELECT computedExceptionCount = 1
        END
    ELSE
        BEGIN
            SELECT computedExceptionCount = 0
        END
    ) AS computedExceptionCount,

    (
    IF EXISTS (SELECT *
        FROM
            exception AS ex
        INNER JOIN
            exceptionDefinition AS ed ON ex.exceptionDefId = ed.exceptionDefId
        WHERE
            ex.customerId='{5B65755C-3B66-434E-AC03-942004E9A27A}'
            AND ex.loanId IS NULL
            AND ex.exceptionState LIKE 'Y'
            AND ex.statusType LIKE 'required'
            AND ed.computationType LIKE 'manual'
        GROUP BY
            ex.customerId,
            ed.computationType,
            ex.exceptionState)
        BEGIN 
            SELECT manualExceptionCount = 1
        END
    ELSE
        BEGIN
            SELECT manualExceptionCount = 0
        END
    ) AS manualExceptionCount

我相信這很簡單……更多的是格式問題

提前謝謝了。

Answer 1

使用案例。

SELECT (
    CASE WHEN EXISTS (SELECT *
        FROM
            exception AS ex
        INNER JOIN
            exceptionDefinition AS ed ON ex.exceptionDefId = ed.exceptionDefId
        WHERE
            ex.customerId='{5B65755C-3B66-434E-AC03-942004E9A27A}'
            AND ex.loanId IS NULL
            AND ex.exceptionState LIKE 'Y'
            AND ex.statusType LIKE 'required'
            AND ed.computationType LIKE 'computed'
        GROUP BY
            ex.customerId,
            ed.computationType,
            ex.exceptionState)
    THEN 1
    ELSE 0
    END
    ) AS computedExceptionCount,

    (
    CASE WHEN EXISTS (SELECT *
        FROM
            exception AS ex
        INNER JOIN
            exceptionDefinition AS ed ON ex.exceptionDefId = ed.exceptionDefId
        WHERE
            ex.customerId='{5B65755C-3B66-434E-AC03-942004E9A27A}'
            AND ex.loanId IS NULL
            AND ex.exceptionState LIKE 'Y'
            AND ex.statusType LIKE 'required'
            AND ed.computationType LIKE 'manual'
        GROUP BY
            ex.customerId,
            ed.computationType,
            ex.exceptionState)
    THEN 1
    ELSE 0 
    END        
    ) AS manualExceptionCount

Answer 2

為什么不聲明上面的計算異常計數和手動異常計數，然后在一個簡單的選擇語句中選擇兩者：

 Declare @computedExceptionCount INT, @manualExceptionCount INT
    Select @computedExceptionCount as computedExceptionCount,@manualExceptionCount as manualExceptionCount

或者你可以像這樣嘗試

SELECT 
  case 
    when ed.computationType LIKE 'manual' then 1 
    else 0 
  end as manualExceptionCount,

  case 
    when ed.computationType LIKE 'computed' then 1
    else 0
  end as computedExceptionCount 
FROM exception AS ex
INNER JOIN
  exceptionDefinition AS ed ON ex.exceptionDefId = ed.exceptionDefId
WHERE ex.customerId='{5B65755C-3B66-434E-AC03-942004E9A27A}'
  AND ex.loanId IS NULL
  AND ex.exceptionState LIKE 'Y'
  AND ex.statusType LIKE 'required'

Answer 3

這將為您做到：

SELECT 
    sum(case ed.computationType LIKE 'computed' then 1 else 0 end) as computedExceptionCount,
    sum(case ed.computationType LIKE 'manual' then 1 else 0 end) as manualExceptionCount
FROM exception AS ex
JOIN exceptionDefinition AS ed ON ed.exceptionDefId = ex.exceptionDefId
WHERE ex.customerId='{5B65755C-3B66-434E-AC03-942004E9A27A}'
AND ex.loanId IS NULL
AND ex.exceptionState LIKE 'Y'
AND ex.statusType LIKE 'required'
GROUP BY ex.customerId,ed.computationType,ex.exceptionState