How to fix the Oracle error PGU-20003: unable to open the cursor?

In this post, you’ll learn more about the Oracle ErrorPGU-20003: unable to open the cursor with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PGU-20003: unable to open the cursor

Reason for the Error PGU-20003: unable to open the cursor

Cause: Internal PGAU logic error – should not occur. An error occurred opening an SQL statement cursor. Syntax checking only continues with the next statement.

How to fix the Error PGU-20003: unable to open the cursor ?

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

Action: Ensure that the Oracle server containing the PG DD is operational. Otherwise, reproduce the error with symptom documentation. Supported Customers should contact Oracle World Wide Support for assistance.