SQL71501：过程包含对对象的未解析引用

Question

我们有一个名为 PrematureLoanSettlement 的表：

CREATE TABLE [dim].[PrematureLoanSettlementRequest]
(
     [PrematureLoanSettlementRequestID]             INT             NOT NULL    IDENTITY(1,1) PRIMARY KEY
    ,[PrematureLoanSettlementRequestID_Primary]     BIGINT          NOT NULL
    ,[ContractID]                                   INT             NOT NULL    
    ,[RequestDateID]                                INT             NOT NULL

    ,[Created]                                      DATETIME        NOT NULL    DEFAULT GETDATE()
    ,[Modified]                                     DATETIME        NOT NULL    DEFAULT GETDATE()
)
GO

在 ETL 过程中，我想更新一个列 ContractID：

---

--  Update ContractID
-------------------------------------------------------------------------

IF @DateID BETWEEN @MinDateID AND @MaxDateID
    BEGIN

        UPDATE stg.PrematureLoanSettlementRequest
        SET a.CountryId = b.ContractID
        SELECT ContractID, @SourceID, @CountryId

        FROM stg.PrematureLoanSettlementRequest a

                INNER JOIN dim.Contract b
                    ON a.ContractID = b.ContractID

        WHERE b.SourceID = @SourceID
            AND b.CountryId = @CountryId

        -- For existing
        UPDATE a
        SET a.ContractID = b.ContractID 
        FROM
            [stg].[PrematureLoanSettlementRequest] a

            JOIN [dim].[PrematureLoanSettlementRequest] b 
                ON a.[PrematureLoanSettlementRequestID_Primary] = b.[PrematureLoanSettlementRequestID_Primary]

        WHERE a.SourceID = @SourceID
            AND a.ContractID IS NULL        

        -- Others
        UPDATE [stg].[PrematureLoanSettlementRequest]
        SET ContractID = 19000101
        WHERE ContractID IS NULL

    END

返回错误：

JOIN [dim].[PrematureLoanSettlementRequest] b 
                    ON a.[PrematureLoanSettlementRequestID_Primary] = **b.[PrematureLoanSettlementRequestID_Primary]**

SQL71501：过程：[s01].[stgPrematureLoanSettlementRequest] 包含对对象的未解析引用。无论是对象 不存在或引用不明确，因为它可以引用任何 以下对象： [dim].[PrematureLoanSettlementRequest].[b]::[PrematureLoanSettlementRequestID_Primary], [dim].[PrematureLoanSettlementRequest].[PrematureLoanSettlementRequestID_Primary] 或者 [stg].[PrematureLoanSettlementRequest].[b]::[PrematureLoanSettlementRequestID_Primary]。 Staging.Database C:\Workspace\Projects\Staging.Database\SchemaObjects\Procedures\s01\stgPrematureLoanSettlementRequest.sql

我们将不胜感激。

Answer 1

你应该问另一个问题，提供样本数据和你想做什么。我怀疑代码可以大大简化。

您当前代码中的至少一个问题是：

    UPDATE stg.PrematureLoanSettlementRequest
        SET a.CountryId = b.ContractID

a 和 b 均未定义。