DefaultLanguage.py

#by default the new file will use this syntax
import sublime
import sublime_plugin


class EverythingIsSQL(sublime_plugin.EventListener):
   def on_new(self, view):
      view.set_syntax_file('Packages/SQL/SQL.sublime-syntax')
#Save as " \Data\Packages\User"
#My example path /home/username/.config/sublime-text-3/Packages/DefaultLanguage.py