Linked Server :: OLE DB provider "OraOLEDB.Oracle" for linked server "ABC" returned message "New transaction cannot enlist in the specified transaction coordinator. ".

Question

Hello All,
As mentioned in title, i am stuck up with that articular error from last three days,
i have following scenario, my SQL server 2008, my oracle 10g are on both same machine with OS Windows Server 2008.
the following error generated on my management studio when i execute my procedure written in my SQL server. Following is original source code snippet after error massage.
OLE DB provider "OraOLEDB.Oracle" for linked server "ORCL" returned message "New transaction cannot enlist in the specified transaction coordinator. ".
Msg 50000, Level 16, State 2, Procedure PROC_MIGRATE_MST_FRM_ORA_SQLSERVER, Line 43
The operation could not be performed because OLE DB provider "OraOLEDB.Oracle" for linked server "ORCL" was unable to begin a distributed transaction.
BEGIN TRY
-- MIGRATION OF PR_COMPANY_MH START
BEGIN TRANSACTION T1
PRINT 'mILAN NNNNNNNNN 11'
INSERT INTO PROD.PR_COMPANY_MH
SELECT * FROM OPENQUERY(ORCL, 'SELECT * FROM PR_COMPANY_MH WHERE SQL_FLG = ''N'' ')
PRINT 'mILAN NNNNNNNNN 12'
UPDATE OPENQUERY(ORCL, 'SELECT SQL_FLG FROM PR_COMPANY_MH WHERE SQL_FLG = ''N''')
SET SQL_FLG = 'Y'
--EXECUTE ('UPDATE PROD.PR_COMPANY_MH SET SQL_FLG = ''Y'' ') AT [ORCL]
PRINT 'mILAN NNNNNNNNN 13'
COMMIT TRANSACTION T1
-- MIGRATION OF PR_COMPANY_MH END
END TRY
BEGIN CATCH
PRINT 'mILAN NNNNNNNNN 14'
ROLLBACK TRANSACTION T1
PRINT 'mILAN NNNNNNNNN 15'
SELECT
@ErrorNumber = ERROR_NUMBER(),
@ErrorSeverity = ERROR_SEVERITY(),
@ErrorState = ERROR_STATE(),
@ErrorLine = ERROR_LINE(),
@ErrorProcedure = ISNULL(ERROR_PROCEDURE(), '-');
PRINT 'mILAN NNNNNNNNN 16'
SELECT @ErrorMessage = ERROR_MESSAGE();
RAISERROR (@ErrorMessage, @ErrorSeverity, @ErrorState, @ErrorNumber, @ErrorProcedure)
PRINT 'mILAN NNNNNNNNN 17'
END CATCH
this perticular part is raising that error, and i had tried every configuartion on my local machine related to MS DTC.
When i remove my transaction code, its work just fine no exception raise, but when i use then i.e. BEGIN TRAN, COMMITE TRAN, AND ROLLBACK TRAN. its giving me error, other wise its fine.
Please Help or disscus or suggest why my transaction base code is not woking????
thanks in advance.
Regards,
Milan

Answer 1

Sorry again, I am new on any kind of forum, so i am learning now, following is the error massage generated by SQL Server. and its not
an architecture problem, i had just included my complete architecture to be more informative while asking for the solution or suggestion. My real problem is T-SQL, i think and its related to Distributed queries raise in SQL Server in Oracle Link Server.
OLE DB provider "OraOLEDB.Oracle"
for linked server "ORCL" returned message "New transaction cannot enlist in the specified transaction coordinator. ".
Msg 50000, Level 16, State 2, Procedure PROC_MIGRATE_MST_FRM_ORA_SQLSERVER,
Line 43
The operation could not be performed because OLE
DB provider "OraOLEDB.Oracle" for linked server "ORCL" was unable to begin a distributed transaction.