How to fix the Oracle error ORA-01858: a non-numeric character was found where a numeric was expected?

In this post, you’ll learn more about the Oracle ErrorORA-01858: a non-numeric character was found where a numeric was expected with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-01858: a non-numeric character was found where a numeric was expected

Reason for the Error ORA-01858: a non-numeric character was found where a numeric was expected

The input data to be converted using a date format model was incorrect. The input data did not contain a number where a number was required by the format model.

How to fix the Error ORA-01858: a non-numeric character was found where a numeric was expected ?

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

Fix the input data or the date format model to make sure the elements match in number and type. Then retry the operation.