不明确的列名错误SQL

Question

我收到以下错误'不明确的列名'ClaimID'：

USE ERSBI_Claims_Warehouse
GO

SELECT 
    ClaimID             AS vClaimID,
    DevelopmentTimeID   AS vDevelopmentTimeID,
    UnderwritingYear    AS vUnderwritingYear,
    IncurredClaimCount  AS vIncurredClaimCount,
    PaidClaimCount      AS vPaidClaimCount,
    EstimateClaimCount  AS vEstimateClaimCount

FROM
    FactClaimSnapshotbreakdownClaimCount as fcbscc

INNER JOIN ERSBI_Warehouse.dbo.FactClaimAccidentYear AS fcay
    ON fcbscc.ClaimID = fcay.ClaimID

WHERE
    fcbscc.BreakdownIntermediateLevel = 'TPP'
AND UnderwritingYear > 2013

我对SQL很新，但我认为我已经包含了所有相关的表名。有人可以告诉我哪里出错了吗？提前谢谢

Answer 1

由于两个表中都存在ClaimID，因此您需要从中选择名称：

SELECT fcbscc.ClaimID ...

Answer 2

您只是在ClaimId语句中选择SELECT，但您有多个包含ClaimId的表格。

你需要告诉它你从哪个桌子拉出来。

根据你的加入：

fcbscc.ClaimID = fcay.ClaimID

执行任何一项

SELECT fcbscc.ClaimID 

或

SELECT fcay.ClaimID

就足够了