Emacs region highlighting

Question

Is there a way to highlight a string in a text (but not ALL such strings) in a buffer where font-lock-mode is on.

Let\'s imagine I have a buffer with SQL mode and

Answer 1

Maybe this helps:

• open ***scratch* buffer and enter:

(with-current-buffer "foo" (add-text-properties 1 10 '(comment t face highlight)))

• then evaluate with C-j

Characters 1-10 will be highlited in buffer "foo".