Hello.
I can pack a database into an EXE file, but you must be aware that this will be read-only. Your data will be absolutly safe, and nobody will see it, unless he/she uses your EXE.
But, if you want to read-write that data, I cannot pack it into the EXE.
I can do both options + a keygen that you will have in order to deliver licencies numbers to your clients.
Kind regards.