Using Set_item_property default_where

I am trying to set the where property on a Block query using the
When the  user enters  a letter I wan to show a list of names beginning with that letter. I know the syntax should be for example (last_name like  'M%').

WHen the user enters the letter all the user  gets is last_name the match the letter.
Please tell how to set the snytax for the set_item_property  default_where clause.

my current syntax is
set_item_property(Block_id,default_where, 'Last_name like :Block.last_name');
where :Block.last_name being the field where the user enters the letter.

Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

I'm not sure if this works or not, but can you use...
set_item_property(Block_id,default_where, 'Last_name like :Block.last_name || ''%'' ');
(note, it is two single quotes in a row '', not a double quote "

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
timjshieldsAuthor Commented:
It worked perfectly. Thanks alot. Points to you
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Oracle Database

From novice to tech pro — start learning today.

Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.