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    Iphone core data updating

    Isted and Harrington first give you a firm grounding in the technology, and then present real-world examples.

    iphone core data updating-39iphone core data updating-1iphone core data updating-22

    When user selects any device in the table view, the detail view controller will be displayed to show the information of the selected device. If you try to edit the information of an existing device, it will not update the device information properly.

    The context provides a method called “delete Object” that allows you to delete the specific object from database.

    Lastly, we invoke the “save” method to commit the change.

    Even without learning SQL and database, you’re able to perform create, select, update and delete operation.

    However, for those with database background, you may want to know the exact SQLs executed behind the scene.

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