Re: Accessing DB2 tables from postgresql

From: Swapnil Vaze <swapvaze28(at)gmail(dot)com>
To: Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: Accessing DB2 tables from postgresql
Date: 2017-07-03 07:05:15
Message-ID: CABWf+ySdAjat9W5OeNUZLhsncAF5mKREuhirWgO=Sn-1O-_-CQ@mail.gmail.com
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Hello,

Thanks for help!!

I am following up on that existing thread.

Thanks,
Swapnil Vaze

On Wed, Jun 28, 2017 at 7:01 PM, Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com>
wrote:

> On 06/28/2017 01:28 AM, Swapnil Vaze wrote:
>
>> Hello,
>>
>> I dropped and recreated foreign table with odbc_database option. Also
>> tried to use import foreign schema object still getting same error.
>>
>> CREATE FOREIGN TABLE
>> odbc_table (
>> CTGRY_ID INTEGER,
>> CTGRY_CD VARCHAR(10),
>> UPDT_TS TIMESTAMP
>> )
>> SERVER odbc_server
>> OPTIONS (
>> odbc_database 'TESTV9',
>> schema 'u90nmqd',
>> sql_query 'select CTGRY_ID,CTGRY_CD,UPDT_TS from `schema1`.`table1`',
>> sql_count 'select count(CTGRY_ID) from `schema1`.`table1`'
>> );
>>
>> I have created server with below definition:
>> CREATE SERVER odbc_server FOREIGN DATA WRAPPER odbc_fdw OPTIONS (dsn
>> 'TESTV9');
>>
>
> So do you have a DSN named 'TESTV9' on the system you are connecting from?
>
> If not you will need to use a driver name instead of DSN.
>
>
>> To test for other DBMS, I created foreign object for postgres with
>> odbc_fdw, however it is throwing too long encoding error.
>>
>
> What is the exact error mesage?
>
>
>> Does ODBC wrapper support DB2 access?
>>
>
> That would seem to depend on whether you have a DB2 ODBC driver present on
> your machine:
>
> https://github.com/CartoDB/odbc_fdw
>
> "To make use of the extension ODBC drivers for the data sources to be used
> must be installed in the system and reflected in the /etc/odbcinst.ini
> file."
>
> See also:
>
> https://github.com/CartoDB/odbc_fdw/issues/45
>
> I would ask there, by either responding to existing issue or starting a
> new issue.
>
>
>
>> Thanks,
>> Swapnil Vaze
>>
>>
>> On Tue, Jun 27, 2017 at 6:38 PM, Adrian Klaver <adrian(dot)klaver(at)aklaver(dot)com
>> <mailto:adrian(dot)klaver(at)aklaver(dot)com>> wrote:
>>
>> On 06/27/2017 03:11 AM, Swapnil Vaze wrote:
>>
>> Hello,
>>
>> I am trying to access few table present in DB2 LUW from
>> postgres9.5 database.
>>
>> I have installed unixODBC driver and connection to DB2 is
>> working fine.
>> I have installed CartoDB/odbc_fdw foreign data wrappers.
>> I have user below commands to create foreign table:
>> $ create extension odbc_fdw;
>> $ CREATE USER MAPPING FOR postgres SERVER odbc_server_db2
>> options(odbc_UID '<username>', odbc_PWD '<password>');
>> $ CREATE FOREIGN TABLE odbc_table (CTGRY_ID INTEGER, CTGRY_CD
>> VARCHAR(10),UPDT_TS TIMESTAMP) SERVER odbc_server_db2 OPTIONS
>> (database 'TESTV9', schema 'schema1', table 'table1' );
>>
>> All commands work fine, however when I try to select data from
>> table it throws error:
>> $ select * from odbc_table;
>> ERROR: Executing ODBC query
>>
>> Can anyone help me here?
>>
>>
>> Might want to take a look at:
>>
>> https://github.com/CartoDB/odbc_fdw
>> <https://github.com/CartoDB/odbc_fdw>
>>
>> From the examples above you need to prefix some settings with
>> odbc_. In your example that would be odbc_database 'TESTV9' instead
>> of database 'TESTV9'.
>>
>>
>> How can I access DB2 LUW or zOS database tables from postgres?
>>
>> -- Thanks & Regards,
>> Swapnil Vaze
>>
>>
>>
>> -- Adrian Klaver
>> adrian(dot)klaver(at)aklaver(dot)com <mailto:adrian(dot)klaver(at)aklaver(dot)com>
>>
>>
>>
>>
>> --
>> Thanks & Regards,
>> Swapnil Vaze
>>
>
>
> --
> Adrian Klaver
> adrian(dot)klaver(at)aklaver(dot)com
>

--
Thanks & Regards,
Swapnil Vaze

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