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I am an Oracle noob and really struggling with this concept of 32 and 64 bit business with Oracle.

All I really want to do, is import data on a daily basis from an Oracle 12c DW into a local 2019 SQL Server and then connect Power BI on top of it.

The reason being that we are looking to move out of Oracle and into SQL Server and I need to PoC.

So far I have looked high and low and can't seem to figure out WHAT to INSTALL to access WHAT in oracle.

All I really need, if I have understood correctly is to install a Oracle CLIENT to be able to then use SSIS to build my ETL routines. BUT when I install 32bit client, it says need 64 bit client and when I install 64bit client it says it wants an ODAC. I have installed that too and still no success.

I am also struggling to understand what folder level goes into the PATH in the system environment variables. It is so complicated in comparison to SQL Server, so I could really use your help in the following questions.

  1. Given that SSMS is 32bit - Can I just install 32bit oracle client and ODAC - if so, which software do I download from Oracle and install - Can't tell the diff between xcopy and other versions (and can you tell me how to update the path)

  2. Do I need to install x64 bit at all, given that I am on a 64bit workstation? If so, again, which software do I download.

My end goal is to be able to:

  • Connect to ORACLE using SQL SERVER SSIS and import data on a daily basis via ETL routines
  • as a temporary back up also connect to ORACLE using Power BI.
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  • If your operating system is 64-bit then you must install the 64-bit Oracle client. Try the instant client for simplicity: oracle.com/database/technologies/instant-client/…
    – pmdba
    Mar 28, 2020 at 19:38
  • @pmdba, that's wrong. It depends on your client whether you have to install 32-bit or 64-bit version. Of course, a 32-bit OS works only with 32-bit client but on 64-bit OS you can install either version (or even both)
    – Wernfried Domscheit
    Mar 28, 2020 at 19:42
  • When your SSMS is 32bit then you have to install the 32-bit Oracle Client. Looks like you messed up some installations, have a look at stackoverflow.com/questions/8450726/…
    – Wernfried Domscheit
    Mar 28, 2020 at 19:45
  • Thanks @WernfriedDomscheit. So basically I need to install 32bit Client and ODAC? Also what about path setting, do I need to explicitey create a new entry by calling it ORACLE_PATH?
    – d18
    Mar 28, 2020 at 21:44
  • The installer should set the PATH
    – Wernfried Domscheit
    Mar 28, 2020 at 22:08

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