Connect to an Oracle database

To connect to an Oracle database with Power BI Desktop, the correct Oracle client software must be installed on the computer running Power BI Desktop. The Oracle client software you use depends on which version of Power BI Desktop you've installed: 32-bit or 64-bit.

Supported Oracle versions:

  • Oracle 9 and later
  • Oracle client software 8.1.7 and later

Determining which version of Power BI Desktop is installed

To determine which version of Power BI Desktop is installed, select File > Help > About, then check the Version line. In the following image, a 64-bit version of Power BI Desktop is installed:

Power BI Desktop version

Installing the Oracle client

Connect to an Oracle database

After you install the matching Oracle client driver, you can connect to an Oracle database. To make the connection, take the following steps:

  1. From the Home tab, select Get Data.

  2. From the Get Data window that appears, select More (if necessary), select Database > Oracle database, and then select Connect.

    Oracle database connect

  3. In the Oracle database dialog that appears, provide the name of the Server, and select OK. If a SID is required, specify it by using the format: ServerName/SID, where SID is the unique name of the database. If the ServerName/SID format doesn't work, use ServerName/ServiceName, where ServiceName is the alias you use to connect.

    Enter Oracle server name


    If you're having trouble connecting in this step, try using the following format in the Server field: (DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=host_name)(PORT=port_num))(CONNECT_DATA=(SERVICE_NAME=service_name)))

  4. If you want to import data by using a native database query, put your query in the SQL statement box, which appears when you expand the Advanced options section of the Oracle database dialog.

    Expand Advanced options

  5. After you've entered your Oracle database information in the Oracle database dialog (including any optional information such as a SID or a native database query), select OK to connect.

  6. If the Oracle database requires database user credentials, input those credentials in the dialog when prompted.


If you downloaded Power BI Desktop from the Microsoft Store, you might be unable to connect to Oracle databases because of an Oracle driver issue. If you encounter this issue, the error message returned is: Object reference not set. To address the issue, do one of these steps:

  • Download Power BI Desktop from the Download Center instead of Microsoft Store.

  • If you want to use the version from Microsoft Store: on your local computer, copy oraons.dll from 12.X.X\client_X to 12.X.X\client_X\bin, where X represents version and directory numbers.

If you see the error message, Object reference not set, in the Power BI Gateway when you connect to an Oracle database, follow the instructions in Manage your data source - Oracle.