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RE: usage of oledb

Posted By: Philippe Fornaciari
Date: Monday, 28 August 2017, at 5:37 a.m.

In Response To: usage of oledb (Habichtsberg, Reinhard)


We got this kind of issue in the same context. This problem was only on tables including Bigint and Bigserial data type.

The problem was identified as IC82827

VARCHAR(M,R) (CSDK-4.10.xC3 - Closed)

Informix support found a way to fix this with the following with the following SQL command to run on the sysmaster database.

Would you mind to run this SQL against sysmaster to update the OLEDB support
table and try again from SQLServer?

update sysmaster:informix.oledbtypes set xstid=52 where typename='bigint';

update sysmaster:informix.oledbtypes set xstid=53 where

'52' and '53' are the correct extended id for bigint and bigserial



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-----Message d'origine-----
De : [] De la part de Habichtsberg, Reinhard
Envoyé : vendredi 25 août 2017 12:05
À :
Objet : usage of oledb [39756]

Hi all,

we are working on a data warehouse project which will be implemented with MS SQLServer. Now the guys from software development urge me to run the coledbp.sql script on the sysmaster database. They want to use a OLEDB Linked Server in Microsoft® SQL Server to allow retrieval of data in an IBM Informix database server. They want to extract the data directly from the Informix databases to put them into their SQL Server DWH.

A first test showed up with an error: Der OLE DB-Anbieter 'Ifxoledbc' für den Verbindungsserver 'TESTINFORMIX1' hat inkonsistente Metadaten für eine Spalte bereitgestellt. Für die ik-Spalte (Kompilierzeit-Ordnungszahl 1) des "adressen":"informix"."ik_stamm"-Objekts wurde für 'DBCOLUMNFLAGS_ISNULLABLE'
der Wert 0 zur Kompilierzeit und 32 zur Laufzeit gemeldet.
Try to translate: The OLE DB-provider 'Ifxoledbc' for the connectionserver 'TESTINFORMIX1' has inconsistent metadata for a row provided. For the ik-column (compiletime-ordinal number 1) of the "adressen":"informix"."ik_stamm"-object is reported the value 0 during compilation and 32 while running for 'DBCOLUMNFLAGS_ISNULLABLE'.
The query was:

Some queries on other tables ran without error, other with conversation errors.

For the error above we found a workaround:
FROM OPENQUERY([adressen@sds_db1_tli],
FROM informix.ik_stamm')

I wonder if it is really best practice to use OLEDB esp. with openquery. The amount of data is about 10 TB initial and has to be updated daily. I suspect we run into performance issues - it's only gut feeling, I have no clue really.

I would be glad if some guys here would share their experiences and/or show some alternatives.

Mit freundlichem Gruß
Reinhard Habichtsberg
Dienstleistungsverantwortlicher IT-Rechenzentrum
Solaris- und Datenbanksysteme
Abrechnungszentrum Emmendingen
Tel.: +497641/9201-203

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Messages In This Thread

  • usage of oledb
    Habichtsberg, Reinhard -- Friday, 25 August 2017, at 6:05 a.m.
    • RE: usage of oledb
      Philippe Fornaciari -- Monday, 28 August 2017, at 5:37 a.m.
    • Re: usage of oledb
      REINHARD HABICHTSBERG -- Tuesday, 29 August 2017, at 6:32 a.m.

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