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我在当前正在处理的存储过程中遇到了可怕的“无法绑定多部分标识符”错误。关于下面的查询，我有几个问题。

  1. 为什么我会收到此错误？
  2. 为什么会在 ImportFundingDateTime 而不是 FloorplanId 上发生此错误，因为它们都来自同一个查询，但 FloorplanId 在输出子句中首先列出？
  3. 我可以调整此查询以在保持总体结构不变的同时不出现错误吗？

.

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;
4

1 回答 1

8

请重新检查MSDN 上OUTPUT 子句 OUTPUT 的语法

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.

看起来您在 FROM 子句中将 CacRecord 别名为“cr”，但没有将其与 UPDATE 子句相关联。

注意：即使它在 FROM 子句中有别名，而在 UPDATE 原因中没有别名，SQL Server 似乎将 CacRecord 识别为 UPDATE 表，要求您使用INSERTED而不是cr作为虚拟表名。

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;

对于此问题的访问者，此代码块显示在 OUTPUT 子句中正确引用了多个表。

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
于 2011-01-31T20:18:37.367 回答