ORA-01858

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

What causes an ORA-01858 error?

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 Xynomix can help

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

Contact us for more information. To learn more about ways we can support your database visit our Oracle database consultancy page.

Contact Us



    On submitting this form, Xynomix will store your details and may contact you in relation to your request. For more information on how we process data, please see our privacy notice.

    “We have utilised Xynomix consultancy for multiple projects. Most recently we have enlisted their consultants help to complete an Oracle database migration to new servers. As part of this Xynomix used their specialist knowledge to set up an appropriate backup and data retention policy in line with industry best practice. The work was, as always, completed in a timely, efficient manner.”
    aston university