I am developing a search page which searches oracle DB where i have a oracle select query which has 4 unions. Some queries takes 25 secs to execute some queries. When the user clicks search button i get "Internal server error (page cannot be displayed)" some times. instead i need to show the users some message. i tried all possible query tuning.
I want to either increase the browser response time / if the response takes long time, display a message. please help me in this regard.