How to manipulate a very large data using QT?



  • Hi all,
    I have a very large data and i want to manipulate(displaying requested part of data) those data providing Qt User interface.
    How do i start for this?
    What are the requirements?
    Do i need to use any database drivers like SQLite or something?



  • Hello.
    What kind of data? If it's textual data (not video or sound) use sqlite for fast lookup.



  • Ya just text data....
    Would u mind to tell how to start with that?
    And if i developed a application using sqlite, do the users also need to install that while executing in different machine?



  • Hi depends on what you want to display, in what context and how the data should be organized.
    It might make sense to read the Model/View classes and check out if it suits your needs. The View(e.g. a QTableView) will only request data from the model (your SQL data) that is displayed. That will keep the load to a minimum. Using the QSQLmodel class will help a lot. Never used it myself, but with the tutorial about Model/View it wouldn't take to much time to master.
    greetz



  • SQLite is a in-process library that implements a self-contained, serverless, zero-configuration, transactional SQL database engine.

    bq. And if i developed a application using sqlite, do the users also need to install that while executing in different machine?

    No. SQLite will be a part of your program.



  • Ok thanks a lot Serge and Jeroente...:)

    I'll try now....if i face any more prblm will get back to u...


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