Share 'about updating database with message.'

hi alex,              we can retrieve message easily from mysql database,and sent t0o flsms and finally to the mobile user..but the now problem is how can we update the database by a messge,like if the user send say   rice 25 .then it has to update the database table row ion that rice to 25. my focus here is .hw can i save the keyword name in this case,say for ex,if i saved keyword as rice .then…