Thanks for reaching out to Jotform Support. I'm sorry but I didn't quite get your question. Are you trying to embed a form in your website prefilled with a submission on your submission table? If yes, you may add the prefill parameter of a form to the iFrame embed code; here's a demo video.
If this is not the case, please explain a bit more about your inquiry so we can provide a more accurate solution.
Once we hear back from you, we'll be able to move forward with a solution.