Matching text in UITextField to a list in UITableView

In my app I have a text box, a table view, and a database. I want 开发者_如何学编程to make it so that when I click on the text box and write something in it, my table view will display the list of words similar or identical to the word or words I have entered into the text field. Please, can anyone provide me a suitable idea for implementing this? Thanks.

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Whenever you edit text field, the delegate method textField:shouldChangeCharactersInRange:replacementString: gets called. Use this to fetch records from database and reload the tableview.

See similar post here and apple's sample code here