Unzip both packages into the same directory (e.g., C:\oracle\instantclient_19_3 ). Do not put them in separate folders.
This registers the driver with the Windows ODBC Data Source Administrator.
(Optional but recommended) Create a new variable named TNS_ADMIN pointing to the folder containing your tnsnames.ora file so applications can find your database service names. Step 4: Create a Data Source Name (DSN) To use the driver in an application: Instant Client for Microsoft Windows (x64) 64-bit - Oracle oracle 19c odbc driver download 64-bit
Connecting to an Oracle database from Windows applications like Excel, Power BI, or custom software requires a specific 64-bit ODBC driver. For , the most efficient way to get this is via the Oracle Instant Client , which provides a lightweight standalone package with full driver functionality. Step 1: Download Required Packages
Windows needs to know where the Oracle libraries are located to load the driver correctly: Unzip both packages into the same directory (e
The driver requires the latest Visual Studio C++ Redistributable from Microsoft to function. Step 3: Configure Environment Variables
Note: Ensure you choose the versions to match your operating system and 64-bit applications. Step 2: Installation and Registration Once downloaded, follow these steps to set up the driver: (Optional but recommended) Create a new variable named
To install the 64-bit ODBC driver, you must download separate zip files from the Official Oracle Instant Client Download Page :