how to show real-time data in web

I want to get real-time data from SQLSERVER database every 3 seconds and show in web page's texts.

for examle: the table1 is refreshed every 3 seconds.

Table1

id values1 values2
1 30 40
2 50 60
...........................

and there are two text-contrls in webpage. I want to let
text1.value=30 text2.value=50, the data is changing every 3 seconds.

thank you for your any help. I'd like to get your sourse codes , examples or suggestions.

Maybe a client side javascript to refresh the page every 3 seconds or using <META HTTP-EQUIV="Refresh" CONTENT=3> and in the page load you read the data from the server. If you dont want the whole page to be refreshed just use an inline frame and point it to the page that needs to be refreshed every 3 seconds.