How to Fix ORA-28040 Error – ORA-28040: No matching authentication protocol exception
Learn how to fix: ORA-28040: No matching authentication protocol exception.
📋 Table of Contents
The ORA-28040 error occurs when the authentication protocol between the Oracle database and the application server does not match. This can be caused by a mismatch in the version of the Oracle client library used to connect to the database.
🛑 Root Causes of the Error
- The Oracle client library version does not match the version used by the database.
🛠️ Step-by-Step Verified Fixes
Method 1: Verify Oracle Client Library Version
- Step 1: Open the Command Prompt and run the command `oracledb -version` to check the version of the Oracle client library.
Method 2: Update Oracle Client Library
- Step 1: Download and install the latest version of the Oracle client library from the official Oracle website.
🎯 Final Words
By following these steps, you should be able to resolve the ORA-28040 error and connect your Grails application to the Oracle database successfully.
❓ Frequently Asked Questions
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