code: def getPolicyValue(self):
          
          self._cur.execute("SELECT action FROM policy")
          r = self._cur.fetchall()
          policy = [x[0] for x in r]
          self._cur.execute("SELECT value FROM V")
          r = self._cur.fetchall()
          value = [x[0] for x in r]
          return policy, value
docs: Get the policy and value vectors.