How to fix the Oracle error PGU-00308: no spool file opened?

In this post, you’ll learn more about the Oracle ErrorPGU-00308: no spool file opened with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PGU-00308: no spool file opened

Reason for the Error PGU-00308: no spool file opened

Cause: You entered SPOOL OFF, but you were not spooling currently so there was no file to close.

How to fix the Error PGU-00308: no spool file opened ?

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

Action: If you wish to capture session output, first use the SPOOL command to open a file, and then enter your commands before closing the file with SPOOL OFF.