How to fix the Oracle error ORA-09820: Conversion of class string to numeric representation failed.?

In this post, you’ll learn more about the Oracle ErrorORA-09820: Conversion of class string to numeric representation failed. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-09820: Conversion of class string to numeric representation failed.

Reason for the Error ORA-09820: Conversion of class string to numeric representation failed.

ORACLE was unable to convert a class string to a number because all of the characters in the string were not numeric.

How to fix the Error ORA-09820: Conversion of class string to numeric representation failed. ?

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

Change the string to be either all numbers or all non-numeric characters and repeat the conversion.