How to get Sqlite database file when application is running on device?

Question

I am facing problem in accessing database file when I am running it on device. How can I get that file? There is no problem in accessing file when I am running application o

Answer 1

Most likely your database is in the apps Documents directory. So you would need to call that directory by using:

- (NSString *)applicationDocumentsDirectory {
    return [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
}

Answer 2

@nitish :

I have a code that will access the sqlite database file when application is running on device.

- (void) initDatabase
{

    BOOL success;
    NSFileManager *fileManager = [NSFileManager defaultManager];
    NSError *error;
    NSArray *paths =    NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
                                                        NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *writableDBPath = [documentsDirectory
                            stringByAppendingPathComponent:@"contacts.db"];

    success = [fileManager fileExistsAtPath:writableDBPath];

    dbpath = [writableDBPath UTF8String];

    NSLog(@"path : %@", writableDBPath);

    if (success) return;
    // The writable database does not exist, so copy the default to the appropriate
    //  location.

    NSString *defaultDBPath = [[[NSBundle mainBundle] resourcePath]
                           stringByAppendingPathComponent:@"contacts.db"];

    success = [fileManager fileExistsAtPath:defaultDBPath];
    //if(success) return;


    success = [fileManager copyItemAtPath:defaultDBPath toPath:writableDBPath error:&error];
    if (!success)
    {
        NSAssert1(0, @"Failed to create writable database file with message '%@'.",[error localizedDescription]);
    }

    dbpath = [writableDBPath UTF8String];
    NSLog(@"path : %@", writableDBPath);
}

"NSLog()" will give you path for sqlite database file. It works for both simulator & device. Hope it will work for you.