How 2 make a function that gets a value from DB without reloading?

Hi every1,
I'm facing this problem where I have to get a value (which always change) from database through a button function which is in Java scriplet.
Now the scriplets (codes within <% and %>) contain calls to the database which get the value, but this is only done when the page loads. So everytime I neeed to get the latest value, I need to reload the code. Is there a way around this?
Thanks!
Regards,
Venus

Add a meta refresh header to let the page refresh itself at certain intervals.
<meta http-equiv="refresh" content="10">This will refresh the current page every 10 seconds.
By the way, Java code belongs in Java classes, not in JSP files. Avoid scriptlets as much as possible. In this case use a Servlet and a DAO.

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