How to fix the Oracle error ORA-26507: null master connection?

In this post, you’ll learn more about the Oracle ErrorORA-26507: null master connection with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-26507: null master connection

Reason for the Error ORA-26507: null master connection

The master connection handle was or became invalid.

How to fix the Error ORA-26507: null master connection ?

You can fix this error in Oracle by following the below steps

Verify that the master connection is valid.

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