int result = sqlite3_open("/MyApp.db", &database);

if(result != SQLITE_OK)
{
sqlite3_close(database);
NSLog(@"Failed to open DB");
return;
}

else {
NSLog(@"Opened DB");
}

sqlite3 *contactDB;

if (!success)

        NSAssert1(0, @"Failed to create database file with message '%@'.", [error localizedDescription]);

}

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory , NSUserDomainMask, YES);

NSString *documentsDir = [paths objectAtIndex:0];

return [documentsDir stringByAppendingPathComponent:@"YOURDATABASENAME.sqlite"];

NSString *dirPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
                                                         NSUserDomainMask,
                                                         YES) objectAtIndex:0];
NSString *dbFile = [dirPath stringByAppendingPathComponent:@"sqlite.db"];