Oracle Client | Download 2021 For Windows 64-bit

WINDOWS.X64_193000_client.zip (size ~2.2 GB)

Go to the official Oracle Technology Network (OTN) download page.

Downloading and installing the Oracle Client for Windows 64-bit depends on whether you need a lightweight driver (Instant Client) or the full administrative suite. Both versions are officially available from Oracle’s Database Technologies section.

| Optional packages (download separately if needed): | | |-----------------------------------------------------|---| | – instantclient-sqlplus-windows.x64-... | Command-line query tool | | Tools – instantclient-tools-windows.x64-... | Data Pump, SQL*Loader | | SDK – for compiling OCI apps | |

A lightweight package that requires no formal installation. It includes the necessary libraries (OCI, OCCI, JDBC) for connecting to databases.

Open Command Prompt (cmd) and type:

Always match the client architecture (64-bit) with your application’s bitness. A 64-bit client cannot be used by a 32-bit application (and vice versa).

For basic connectivity (ODBC, OCI, OCCI, JDBC OCI), download:

If you see the SQL> prompt, the client is installed and working correctly.