I have searched and searched for an answer to this, and I think this must be child\'s play for anyone who KNOWS SQL (which is not me).
I want to insert a prefix to the v
You have no other conditions like update this in all rows then you can try
UPDATE jos_content SET title = CONCAT('Mr. ', title)
if you want to update conditionally that means particular row needs to update the you can use
UPDATE jos_content SET title = CONCAT('Mr. ', title) where fiedl_name ='condition'
eg: UPDATE jos_content SET title = CONCAT('Mr. ', title) where id = '1'
this will update only one row which contain id=1.
any way before doing this should keep a backup