How to let user search data set and display result

I’ve read the Corvid tutorials but I can’t seem to find exactly what I need it to do.

I need to allow the user to enter a code, which when submitted will return a corresponding number from the data set and display it to that user.

Only example I saw was a table or drop-down list, however I do not want to allow other people to view other codes etc.

Any ideas? New to this still. Thank you!