無效的列名“ ProposalTypeID”

Question

您能告訴我，在此存儲過程中我在做什么錯，它一直在抱怨“ ProposalTypeID”。 這是我的代碼：

 SELECT assessmentecosystemcreditid,
       assessmentversionid,
       dbo.tblassessmentecosystemcredit.managementzoneid,
       (SELECT proposaltypeid
        FROM   tblassessment
        WHERE  assessmentid = (SELECT assessmentid
                               FROM   tblassessmentversion
                               WHERE  assessmentversionid =
               dbo.tblassessmentecosystemcredit.assessmentversionid)) AS
       ProposalTypeID,
       CASE
         WHEN sitevaluecurrentscore <= 17
              AND ( dbo.tblvegetationzone.eecid > 0 )
              AND ( proposaltypeid = 699 ) THEN 0
         ELSE numberofcredits
       END                                                            AS
       NumberOfCreditst
FROM   dbo.tblassessmentecosystemcredit
       INNER JOIN dbo.tblvegetationtype
               ON dbo.tblassessmentecosystemcredit.vegtypeid =
                  dbo.tblvegetationtype.vegtypeid
       INNER JOIN dbo.tblmanagementzone
               ON dbo.tblassessmentecosystemcredit.managementzoneid =
                  dbo.tblmanagementzone.managementzoneid
       INNER JOIN dbo.tblvegetationzone
               ON dbo.tblvegetationzone.vegetationzoneid =
                  dbo.tblmanagementzone.vegetationzoneid
WHERE  dbo.tblassessmentecosystemcredit.assessmentversionid =
       @AssessmentVersionID  

Answer 1

根據我在查詢中看到的內容，您不能在CASE語句中引用proposaltypeid 。

表tblassessment不在頂級SELECT語句的FROM部分中。

雖然您也可以在其他表中有一個proposaltypeid ，但是我認為這是造成此問題的原因。

最后，在最后一個WHERE子句之前，您將需要一個LEFT JOIN （可以肯定）。

我想查詢更改為下面的代碼（會產生混亂的結果集），然后從那里調它（我不知道，如果你有一個相應的列assessmentid在其他表（這是在頂級SELECT ）。

如果這樣做，則將LEFT JOIN的ON條件更改為

TBA.assessmentid = "referencedTable"."correspondingColumn"

SELECT assessmentecosystemcreditid,
       assessmentversionid,
       dbo.tblassessmentecosystemcredit.managementzoneid,
       (SELECT proposaltypeid
        FROM   tblassessment
        WHERE  assessmentid = (SELECT assessmentid
                               FROM   tblassessmentversion
                               WHERE  assessmentversionid =
            dbo.tblassessmentecosystemcredit.assessmentversionid)) AS ProposalTypeID,
       CASE
         WHEN sitevaluecurrentscore <= 17
              AND ( dbo.tblvegetationzone.eecid > 0 )
              AND ( proposaltypeid = 699 ) THEN 0
         ELSE numberofcredits
       END AS NumberOfCreditst
FROM   dbo.tblassessmentecosystemcredit
       INNER JOIN dbo.tblvegetationtype
               ON dbo.tblassessmentecosystemcredit.vegtypeid =
                  dbo.tblvegetationtype.vegtypeid
       INNER JOIN dbo.tblmanagementzone
               ON dbo.tblassessmentecosystemcredit.managementzoneid =
                  dbo.tblmanagementzone.managementzoneid
       INNER JOIN dbo.tblvegetationzone
               ON dbo.tblvegetationzone.vegetationzoneid =
                  dbo.tblmanagementzone.vegetationzoneid
       LEFT JOIN tblassessment TBA ON 1 = 1
WHERE  dbo.tblassessmentecosystemcredit.assessmentversionid =
       @AssessmentVersionID 

根據可用的信息，這是一個很籠統的答案，但我認為它將使您走上正確的道路。

更新：

我相信此查詢將為您提供所需的信息：

SELECT assessmentecosystemcreditid,
       assessmentversionid,
       dbo.tblassessmentecosystemcredit.managementzoneid,
       (SELECT proposaltypeid
        FROM   tblassessment
        WHERE  assessmentid = (SELECT assessmentid
                               FROM   tblassessmentversion
                               WHERE  assessmentversionid =
            dbo.tblassessmentecosystemcredit.assessmentversionid)) AS ProposalTypeID,
       CASE
         WHEN sitevaluecurrentscore <= 17
              AND ( dbo.tblvegetationzone.eecid > 0 )
              AND ( proposaltypeid = 699 ) THEN 0
         ELSE numberofcredits
       END AS NumberOfCreditst
FROM   dbo.tblassessmentecosystemcredit
       INNER JOIN dbo.tblvegetationtype
               ON dbo.tblassessmentecosystemcredit.vegtypeid =
                  dbo.tblvegetationtype.vegtypeid
       INNER JOIN dbo.tblmanagementzone
               ON dbo.tblassessmentecosystemcredit.managementzoneid =
                  dbo.tblmanagementzone.managementzoneid
       INNER JOIN dbo.tblvegetationzone
               ON dbo.tblvegetationzone.vegetationzoneid =
                  dbo.tblmanagementzone.vegetationzoneid

       -- added/modified below JOINs
       INNER JOIN dbo.Assesmentversion AV ON 
         AV.assessmentversionid = dbo.tblassessmentecosystemcredit.assessmentversionid
       INNER JOIN tblassessment TBA ON 
         TBA.AssessmentID = AV.AssessmentID 
WHERE  dbo.tblassessmentecosystemcredit.assessmentversionid =
       @AssessmentVersionID