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  • Help in designing a data access using AJAX

    Hi All.

    I am developing a calendaring application in which I need to give the functionality to users to associate their contacts as the members of the events.
    For this I am designing a AJAX based data access to fetch the core information of the contacts like their name, group and email address.

    I would like to know what options I can look at the server side to fetch this info in quick time. I was thinking of following, please advice me considering the pros and cons of these approaches:

    1) DB based approach: Every time a request to fetch contacts comes to the server, I fetch the data from the DB, may be few relevant columns, and send all the records to the web client
    2) I keep the relevant contact info in the cache so that this info can be furnished from there without making a DB call.
    3) Some other option.

    Please advice which option will be better & if there is any technology/framework which can be leveraged here, it will help a lot.