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45

answers:

1
Q: 

iPhone App Updgrade Query

Hi All, I'm developing iphone app which take pictures and store it in iphone (within app folder) and picture name and other information stored in sqllite database. If in future, I will release new version of iphone app then does it delete old pictures and update database?

Thanks, Priya

+1  A: 

No, your data will be intact after upgrade.

Of course you will have to properly migrate the database if you made changes.

Also, I would recommend using Core Data instead of SQLite directly.

gerry3  2010-01-01 02:55:43
Actually I have so many data which I need to store. That's why I choose sqllite. Thanks for your quick response.
priya mahajan  2010-01-01 03:04:16
Core Data uses SQLite and offers better performance. Also, in my opinion, it offers easy data model management.
gerry3  2010-01-01 03:24:33
Can you give me any example or tutorial of CoreData?
priya mahajan  2010-01-01 04:54:23
Refer to the answers on the following questions for more about Core Data: http://stackoverflow.com/questions/1581599/getting-started-in-core-data-for-iphone , http://stackoverflow.com/questions/1656476/new-to-core-data-for-iphone , http://stackoverflow.com/questions/840634/core-data-vs-sqlite-for-sql-experienced-developers
Brad Larson  2010-01-01 13:55:50
Apple also has a lot of sample code on the subject, such as CoreDataBooks (formerly SQLiteBooks): http://developer.apple.com/iPhone/library/samplecode/CoreDataBooks/index.html
Brad Larson  2010-01-01 13:57:33

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