January 2017
Beginner to intermediate
624 pages
22h 42m
English
book
Android Programming: The Big Nerd Ranch Guide, Third Edition
by Bill Phillips, Chris Stewart, Kristin Marsicano
Content preview from Android Programming: The Big Nerd Ranch Guide, Third Edition
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Building Your Initial Database
With your schema defined, you are ready to create the database itself. Android provides some low-level methods on Context to open a database file into an instance of SQLiteDatabase: openOrCreateDatabase(…) and databaseList().
However, in practice you will always need to follow a few basic steps:
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Check to see whether the database already exists.
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If it does not, create it and create the tables and initial data it needs.
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If it does, open it up and see what version of your CrimeDbSchema it has. (You may want to add or remove things in future versions of CriminalIntent.)
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If it is an old version, upgrade it to a newer version.
Android provides the SQLiteOpenHelper class to handle all ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.