How to fix the Oracle error PLS-00736: user-declared operators are not allowed?

In this post, you’ll learn more about the Oracle ErrorPLS-00736: user-declared operators are not allowed with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

PLS-00736: user-declared operators are not allowed

Reason for the Error PLS-00736: user-declared operators are not allowed

An attempt was made by the user to declare an operator (a function whose name is enclosed in single quotes (“‘”)). Operators may only be declared in package STANDARD.

How to fix the Error PLS-00736: user-declared operators are not allowed ?

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

Remove the single quotes from around the function name, replacing them with double quotes (“””) only if needed.