How to search whole MySQL database for a particular string is it possible to search a whole database tables ( row and column) to find out a particular string.

I am having a Database named A with about 35 tables,i need to search for the string named "hello" and i dont know on which table this string is saved.Is it possible?

Using MySQL

i am a linux admin and i am not familiar with databases,it would be really helpful if u can explain the query also.
$ mysqldump -pPASSWORD database --extended=FALSE | grep pattern | less -S


More: http://winashwin.wordpress.com/2012/08/28/mysql-search/