Hi Endless112. Thanks for posting!
What is "the traditional filter suggestion"?
You need to execute a query using data from your form. Out-of-box SQL data connections do not accept field parameters as part of the SQL query text. You could use a Web service that does it and pass the value to it. Qdabra's DBXL Web service has a Query DB method which is easy to configure to do this. Another approach is to write some code in your form. qRules also has a command that lets non coders do the same thing using just a rule. Both DBXL and qRules are free trials.
If you don't have much data (<1000 rows), why re-query at all? Just query it all into your form and do the filtering using out-of-box filters.
Good luck!