can we execute mySQL queries in jQuery Calllback functions & misc. functions
like simple query
UPDATE EMPLOYEE SET PAY = PAY + 500 WHERE E_ID = \
While you could do this using a callback to a server-side script to execute your queries against MySQL, it would be a quick way to security holes.
Generating SQL queries from anything run on an end user device is a terribly bad idea. Never trust anything a user sends you.