輸出條款：多部分標識符無法綁定

Question

我正在運行可怕的「多部分標識符無法綁定」錯誤我正在處理的存儲過程。關於下面的查詢，我有幾個問題。

1. 爲什麼我得到這個錯誤？
2. 爲什麼會在ImportFundingDateTime而不是FloorplanId上發生此錯誤，因爲它們都來自同一個查詢，但FloorplanId在輸出子句中首先列出？
3. 我是否可以調整此查詢以避免出現錯誤，同時仍保持一般結構相同？

。

DECLARE @Results    Table(
    [FloorPlanId]    UNIQUEIDENTIFIER, 
    [ImportFundingDateTime]  DATETIME, 
    [TimeStamp]     VARBINARY(8), 
    [BusinessId]    UNIQUEIDENTIFIER 
    ) 

UPDATE CacRecord 
    SET MatchFound = 1 
    OUTPUT fp.[FloorplanId], cr.[ImportFundingDateTime], 
      fp.[TimeStamp], buyer.[BusinessId] 
    INTO @Results( [FloorplanId], [ImportFundingDateTime], 
        [TimeStamp], [BusinessId]) 
    FROM CacRecord cr WITH (NOLOCK) 
    INNER JOIN CacBatch cb WITH (NOLOCK) 
     ON cr.CacBatchId = cb.CacBatchId 
    INNER JOIN Floorplan fp WITH (NOLOCK) 
     ON fp.UnitVIN = cr.ImportVin 
     AND COALESCE(fp.UnitVIN, '') <> '' 
    INNER JOIN Business buyer WITH (NOLOCK) 
     ON buyer.BusinessId = fp.BuyerBusinessId 
    LEFT OUTER JOIN BusinessContact bc WITH (NOLOCK) 
     ON bc.BusinessId = buyer.BusinessId 
    LEFT OUTER JOIN Contact c WITH (NOLOCK) 
     ON c.ContactId = bc.ContactId 
    WHERE cb.CacJobInstanceId = @cacJobInstanceId 
     AND fp.FloorplanStatusId = 1 --Approved 
     AND COALESCE(cr.ImportVin, '') <> '' 
     AND 1 = 
      CASE 
       WHEN cr.ImportFein = buyer.FederalTaxID 
        AND COALESCE(cr.ImportFein, '') <> '' THEN 1 
       WHEN cr.ImportSsn = c.Ssn 
        AND COALESCE(cr.ImportSsn, '') <> '' THEN 1 
       ELSE 0 
      END; 

Answer 1

請重新檢查OUTPUT子句OUTPUT on MSDN

Syntax 

<column_name> ::= 
{ DELETED | INSERTED | from_table_name } . { * | column_name } 

from_table_name 

Is a column prefix that specifies a table included in the FROM clause 
of a DELETE or UPDATE statement that is used tospecify the rows to 
update or delete. 

的語法看起來你已經在FROM子句中的「CR」別名CacRecord，但與UPDATE子句沒有相關性。

注意：即使它的別名FROM子句，並在更新原因沒有別名，SQL服務器似乎承認CacRecord作爲更新表，要求您使用INSERTED代替cr作爲虛擬表名。

UPDATE cr 
SET MatchFound = 1 
OUTPUT fp.[FloorplanId], INSERTED.[ImportFundingDateTime], 
    fp.[TimeStamp], buyer.[BusinessId] 
INTO @Results([FloorplanId], [ImportFundingDateTime], 
    [TimeStamp], [BusinessId]) 
FROM CacRecord cr WITH (NOLOCK) 
INNER JOIN CacBatch cb WITH (NOLOCK) 
ON cr.CacBatchId = cb.CacBatchId 
INNER JOIN Floorplan fp WITH (NOLOCK) 
ON fp.UnitVIN = cr.ImportVin 
AND COALESCE(fp.UnitVIN, '') <> '' 
INNER JOIN Business buyer WITH (NOLOCK) 
ON buyer.BusinessId = fp.BuyerBusinessId 
LEFT OUTER JOIN BusinessContact bc WITH (NOLOCK) 
ON bc.BusinessId = buyer.BusinessId 
LEFT OUTER JOIN Contact c WITH (NOLOCK) 
ON c.ContactId = bc.ContactId 
WHERE cb.CacJobInstanceId = @cacJobInstanceId 
AND fp.FloorplanStatusId = 1 --Approved 
AND COALESCE(cr.ImportVin, '') <> '' 
AND 1 = 
    CASE 
    WHEN cr.ImportFein = buyer.FederalTaxID 
    AND COALESCE(cr.ImportFein, '') <> '' THEN 1 
    WHEN cr.ImportSsn = c.Ssn 
    AND COALESCE(cr.ImportSsn, '') <> '' THEN 1 
    ELSE 0 
    END; 

對於訪問者這個問題，這個代碼塊示出了輸出子句中被引用正確多個表。

create table TO1 (id int, a int); 
create table TO2 (id int, b int); 
create table TO3 (id int, c int); 
insert into TO1 select 1,1; 
insert into TO2 select 1,2; 
insert into TO3 select 1,3; 
insert into TO3 select 1,4; 

declare @catch table (a int, b int, c int) 
update c 
set c = a.a 
output a.a, b.b, INSERTED.c 
into @catch(a,b,c) 
from TO1 a 
inner join TO2 b on a.id=b.id 
inner join TO3 c on a.id=c.id