codeigniter-memcache - a library/wrapper for memcached

[eluser]dungdn[/eluser]
Thanks for nice working,
But can you show me how to use this library. i've worked with codeigniter for only 3 months, and there are many things i don't know.
If i have a search page with a sql query like: select * from tbl_table where a like '% .$a. %';
how can i cache the query or the search results.

Thanks alot for your help..