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For developers and database administrators, the is the essential gateway for connecting applications and local tools to an Oracle Database. Whether you need a lightweight driver for a Python script or a robust administrative suite for server management, Oracle provides several "flavors" of the 64-bit client to suit your needs. Core Versions of the Oracle 64-bit Client
It is highly recommended to download the version that matches your Database Server version (e.g., 19c or 21c). Version 19c is the Long Term Support release and is recommended for stability. oracle client for windows 64 bit download
How to Download Oracle Client (64-bit) for Windows
You will be prompted to sign in with your Oracle Account. Accept the License Agreement to proceed with the download. You will need to accept the license via
Oracle frequently updates its version numbers (e.g., 19c, 21c, 23ai). The instructions below will work for the latest long-term release.
Navigate to the Oracle Technology Network (OTN) Software Downloads page: https://www.oracle.com/database/technologies/ Core Versions of the Oracle 64-bit Client It
Oracle Database 19c Download for Microsoft Windows x64 (64-bit) Database. Installing Oracle Instant Client - Stack Overflow
Go to the Oracle Database Software Downloads page: https://www.oracle.com/database/technologies/oracle-database-software-downloads.html
If you have older Oracle clients installed, the PATH variable determines which one is used by default. Ensure your new 64-bit path appears before any 32-bit paths in the System Environment Variables.
Regardless of the installation type, the following steps are necessary for connectivity: