Read from a web page and store in DB !!!

Question

Hello all.
 
i have a DB
contains a table with columns
one of those a columns holds  a link to  webpages that contain an abstract of a book !!
 
i need to read this abstract only out of the whole web site
and save it to the DB ...
 
i have some ideas in my mind !!
but get confused how to start !!