Create a new text file named tnsnames.ora (ensure it does not end in .txt ). Add your database connection string format:
Because Oracle 11g is under Extended/Sustaining Support, it is no longer hosted on the public, free Oracle Technology Network (OTN) download page. You must use the Software Delivery Cloud. Navigate to . Sign in with your Oracle Account (registration is free). In the search bar, type Oracle Database Client . Select Oracle Database Client 11.2.0.4.0 . oracle client 11.2.0.4 download 32 bit
A common point of confusion is installing a 32-bit client on a 64-bit version of Windows 10 or Windows 11. Create a new text file named tnsnames