Which is the best app to create mysql databases and queries in offline for free?

Question

Asking if there is any app to create mysql databases and queries in android in offline for free

Answer 1

Android got a package called SQLite.
The app-store has a program called Termux, which emulates a linux-shell on your phone.
You'll be able to install SQLite by typing "pkg install SQLite" there.
To open it, simply type "sqlite3" in Termux afterwards.