Question

我有一张桌子，我正在存储津贴和扣减。如果BaseCode为1，那么它是一个余量，如果BaseCode是2，那么它是扣除。我试图将列转换为2列。

津贴扣除什么东西

SELECT (
        SELECT INN.FullName AS Benefit
        FROM [AppCNF].[tbl_AllowanceOrBenefitType] INN
        WHERE INN.BASECODE = 1
            AND INN.ID = OUTR.ID
        )
    , FullName AS Deductions
FROM [AppCNF].[tbl_AllowanceOrBenefitType] OUTR
WHERE BASECODE = 2

这是我到目前为止所尝试的内容，但它给予Allowances NULL。

Answer 1

不确定您到底在做什么，但很可能您可以使用CASE：

SELECT
    ID
    ,CASE WHEN BASECODE = 1 THEN FullName END AS Benefit
    ,CASE WHEN BASECODE = 2 THEN FullName END AS Deductions
    -- ,... other columns ...
FROM [AppCNF].[tbl_AllowanceOrBenefitType]
;

Answer 2

您可以使用CASE来调整列中的结果。

SELECT 
    IsAllowance = CASE WHEN OUTR.BASECODE = 1 THEN 'Yes' END,
    IsDeduction = CASE WHEN OUTR.BASECODE = 2 THEN 'Yes' END,
    OUTR.*
FROM 
    [AppCNF].[tbl_AllowanceOrBenefitType] OUTR

将列分为2

2 个答案: