Error messages when you perform an UPDATE, INSERT, or DELETE Transact-SQL statement on a remote table by using the OpenQuery function: "7357" and "7320"

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Article ID: 270119 - View products that this article applies to.
This article was previously published under Q270119
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SYMPTOMS

Distributed queries that use the OpenQuery function to update, delete, or insert data in the following way
exec sp_dropserver 'linked1', 'droplogins'
exec sp_addlinkedserver 'linked1', 'SQL Server'
exec sp_setnetname  'linked1', '<servername>'
exec sp_addlinkedsrvlogin 'linked1', 'false', null, '<login name>', '<password>'

SET ANSI_NULLS ON
go
SET ANSI_WARNINGS ON
go
select * from openquery (linked1, 'update testlinked set ssn=ssn+1')
select * from openquery (linked1, 'insert into  testlinked  (ssn) values (1000)')
select * from openquery (linked1, 'delete from  testlinked  where ssn=1')
				
may generate the following error messages:
Server: Msg 7357, Level 16, State 2, Line 1 Could not process object 'update testlinked set ssn=ssn'. The OLE DB provider 'SQLOLEDB' indicates that the object has no columns.

Server: Msg 7357, Level 16, State 2, Line 1 [Microsoft][ODBC SQL Server Driver][SQL Server]Could not process object 'update testlinked set ssn=ssn'. The OLE DB provider 'MSDASQL' indicates that the object has no columns.
The actual text message of the error may vary depending on the OLE DB provider and the operation (UPDATE, INSERT, or DELETE) being performed, but the error number is always 7357.

If you are using Microsoft SQL Server 2005, you receive the following error message:
Server: Msg 7357, Level 16, State 2, Line 1 Cannot process the object "update testlinked set ssn=ssn". The OLE DB provider "SQLOLEDB" for linked server "ServerName" indicates that either the object has no columns or the current user does not have permissions on that object.

CAUSE

OpenQuery requires a result set to be returned, but UPDATE, DELETE, and INSERT statements that are used with OpenQuery do not return a result set.

WORKAROUND

You can work around this problem in the following ways:
  1. Use four-part names (linked_server_name.catalog.schema.object_name) to do insert, update, or delete operations.
  2. As documented in SQL Server Books Online, reference the OpenQuery function as the target table of an INSERT, UPDATE, or DELETE statement, subject to the capabilities of the OLE DB provider. The following queries demonstrate proper usage with the SQL Server OLE DB provider:
    update openquery(linked1, 'select ssn from testlinked where ssn=2')
    set ssn=ssn + 1
    insert openquery(linked1, 'select ssn from testlinked where 1=0') values (1000)
    delete openquery(linked1, 'select ssn from testlinked where ssn>100')
    						
    Note In the INSERT statement, a where 1=0 predicate is used to avoid retrieving data from the remote server, which can result in slower performance. Also, UPDATE and DELETE operations have special index requirements; see the "More Information" section for details.

MORE INFORMATION

Unique Index Requirement

The SQL Server OLE DB provider requires that a unique index exist on the underlying table for UPDATE or DELETE operations. If no unique index exists on a remote table, the following error occurs when an UPDATE or DELETE is attempted:
Server: Msg 7320, Level 16, State 2, Line 1 Could not execute query against OLE DB provider 'SQLOLEDB'. The provider could not support a required row lookup interface. The provider indicates that conflicts occurred with other properties or requirements. [OLE/DB provider returned message: Multiple-step OLE DB operation generated errors. Check each OLE DB status value, if available. No work was done.
This applies both to OpenQuery and four-part named UPDATE and DELETE operations. The problem is resolved by adding a unique index on the remote table.

Dynamic Execution with OpenQuery

It may sometimes be desirable to use a dynamic query to achieve the same effect using OpenQuery, as shown in the following example:
begin tran
SET QUOTED_IDENTIFIER OFF
SET XACT_ABORT ON
declare @cmd varchar(2500) 
declare @cmd1 varchar(2500) 
declare @var varchar(20) 
set @var = 'White' 
declare @var1 varchar(20) 
set @var1 = 'White1' 
declare @var2 varchar(20) 
set @var2 = 'Johnson1'

select @cmd = "Update openquery(linked1,'select au_lname, au_fname from pubs.dbo.authors
where au_lname = ''" + @var + "''' )
set au_lname = '" + @var1 + "',
au_fname = '" + @var2 + "'"

exec ( @cmd )

commit tran
select * from <servername>.pubs.dbo.authors
				

Properties

Article ID: 270119 - Last Review: February 22, 2007 - Revision: 4.3
APPLIES TO
  • Microsoft SQL Server 7.0 Standard Edition
  • Microsoft SQL Server 2000 Standard Edition
  • Microsoft SQL Server 2005 Standard Edition
  • Microsoft SQL Server 2005 Developer Edition
  • Microsoft SQL Server 2005 Enterprise Edition
  • Microsoft SQL Server 2005 Express Edition
  • Microsoft SQL Server 2005 Workgroup Edition
Keywords: 
kbprb KB270119

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