How to validate two elements in a form that are not necessarily required

I have a NO REQUIRED text field in which a user enters a value. I have a screen in the text field that will populate the result based on what is entered in the text field. I am wanting to validate the information entered in the text box.

I added a validation indicating if the information exists, then display an error message. It works for the most part, but when the field is null, it gives me the error as well.

How can I validate only if a value is inserted?

Thank you
Deanna

Try

Select last_name. «, » || first name
of org1
where radionum =: p2_technician1_radio OR (: p2_technician1_radio is null)

Tags: Database

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