How to fix the Oracle error ORA-12726: unmatched bracket in regular expression?

In this post, you’ll learn more about the Oracle ErrorORA-12726: unmatched bracket in regular expression with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-12726: unmatched bracket in regular expression

Reason for the Error ORA-12726: unmatched bracket in regular expression

The regular expression did not have balanced brackets.

How to fix the Error ORA-12726: unmatched bracket in regular expression ?

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

Ensure the brackets are correctly balanced.