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I’m lazy, why doesn’t anyone have instructions I can follow already! I guess it’s time to give back to the Google seekers of this world. After going through the process I can understand why no one has written a guide, it’s not a straight forward process.

As this sort of thing can be very version specific I tested these instructions using the following versions of software

  • Windows Server 2012 R2 running on AWS
  • Qlik Sense 2.2.4
  • Oracle instant Client version 12.1.0.2.0 64bit

Two things need to be downloaded for this to work from here Instant Client Downloads for Microsoft Windows (x64)

  • Instant Client Package – Basic
  • Instant Client Package – ODBC

Once you have the files follow the steps below to get things working:

  1. Unzip the instantclient-basic-windows.x64-<version number>.zip
  2. Move the folder instantclient_<version number> into a permanent location. In my case c:\app\
  3. Edit the system environment variables on the server add the folder location to the end of the PATH variable.  eg %SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;%SYSTEMROOT%\System32\WindowsPowerShell\v1.0\;C:\Program Files\Amazon\cfn-bootstrap\;C:\app\instantclient_12_1
  4. Add new system variable
    Variable Name:TNS_ADMIN
    Variable Value: <Path to where you want to store tnsnames.ora file>
  5. Create a text file called tnsnames.ora in the folder specified in step 4 and create an entry for your desired DB which should follow the below format
    <addressname> =
     (DESCRIPTION =
       (ADDRESS_LIST =
         (ADDRESS = (PROTOCOL = TCP)(Host = <hostname>)(Port = <port>))
       )
     (CONNECT_DATA =
       (SERVICE_NAME = <service_name>)
     )
    )
  6. Unzip instantclient-odbc-windows.x64-<version number>.zip
  7. Move the contents of the instantclient_<version number> folder into the instantclient_<version number> folder from step 2
  8. Run instantclient_<version number>\odbc_install.exe
  9. To test if things work setup an odbc Data Source (64-bit) as a System DSN and test the conneciton.
  10. You may need Microsoft Visual C++ 2010 SP1 Redistributable Package (x64)  if you have the below error when adding a new ODBC Data Source.
    oralce_instant_client_error
  11. In Qlik Sense you can create a new connection at this point ODBC driver. If you get an error message “You do not have access to the data source” as I experienced the only solution that worked for me was in this post and the solution wasn’t ideal. I intend to talk to Qlik to see if there is a better solution.

All the code, all the fun – Ben 

Ben writes blogs about the technical side of BI the code, all the code and not much other than the code. 

You can read all of Ben’s blog here.

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