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(Optional but recommended) If you want multiple applications or clients to share a single network configuration file, create a system variable named TNS_ADMIN and set its value to the directory containing your tnsnames.ora file. 3. Testing the Connection
Filter by the platform to download the full client installer. Step-by-Step Installation Guide
"ORA-12154: TNS:could not resolve the connect identifier specified" oracle client 11.2.0.4 download 32 bit
: Official support for 11.2.0.4 ended in December 2020. While it may run on newer versions of Windows like Windows 10 or 11, it is not officially certified for them and may require troubleshooting. 32-bit vs. 64-bit : If your application is 32-bit, you use the 32-bit client, even if your Windows OS is 64-bit. Database Connectivity
An Oracle Client cannot connect to a database out of the box; it requires network configuration. Configuring the TNSNAMES.ORA File (Optional but recommended) If you want multiple applications
Depending on your needs (Full Client vs. Instant Client), you have three main official sources:
The tnsnames.ora file maps a simple local alias to the complex network address of your remote database. 64-bit : If your application is 32-bit, you
This is the best source for the full graphical installer. You can search for "Oracle Database Enterprise Edition," select the 11.2.0.4 version, and filter the platform to Microsoft Windows (32-bit) to find the "Oracle Database Client" package.
