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    <p>here how i done this create a class called DBManagement and in m file implement these methods.also put this line in implementation file above @implementation line </p> <p>static sqlite3 *CHManagement = nil;</p> <pre><code>-(NSString *) getDBPath { NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *MyDatabasePath = [documentsDirectory stringByAppendingString:@"/CHManagement.sqlite"]; return MyDatabasePath; } -(void) checkDataBase { NSLog(@"CheckDatabase Called"); NSFileManager *fileManager=[NSFileManager defaultManager]; NSError *error=[[[NSError alloc]init] autorelease]; NSString *dbPath = [self getDBPath]; BOOL success=[fileManager fileExistsAtPath:dbPath]; if(!success) { NSString *defaultDBPath=nil; defaultDBPath=[[[NSBundle mainBundle]resourcePath]stringByAppendingPathComponent:@"CHManagement.sqlite"]; success=[fileManager copyItemAtPath:defaultDBPath toPath:dbPath error:&amp;error]; if(!success) { NSAssert1(0,@"failed to create database with message '%@'.",[error localizedDescription]); } } else { sqlite3 *MyDatabase; NSInteger VersionNumber=0; sqlite3_stmt *CompiledStatement=nil; NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask,YES); NSString *documentsDirectory = [paths objectAtIndex:0]; NSString *MyDatabasePath = [documentsDirectory stringByAppendingString:@"/CHManagement.sqlite"]; if(sqlite3_open([MyDatabasePath UTF8String],&amp;MyDatabase) == SQLITE_OK) { sqlite3_prepare_v2(MyDatabase, "select appVersionNo from VersionInfo", -1, &amp;CompiledStatement, NULL); while(sqlite3_step(CompiledStatement) == SQLITE_ROW) { VersionNumber=sqlite3_column_int(CompiledStatement,0); } sqlite3_reset(CompiledStatement); sqlite3_finalize(CompiledStatement); sqlite3_close(MyDatabase); } if (VersionNumber!=1) { [self deleteDatabase]; NSString *defaultDBPath=[[[NSBundle mainBundle]resourcePath]stringByAppendingPathComponent:@"CHManagement.sqlite"]; success=[fileManager copyItemAtPath:defaultDBPath toPath:dbPath error:&amp;error]; if(!success) { NSAssert1(0,@"failed to create database with message '%@'.",[error localizedDescription]); } } } } - (void)deleteDatabase { NSLog(@"Delete Database Called"); NSError **error=nil; NSFileManager *FileManager = [NSFileManager defaultManager]; NSString *databasepath = [self getDBPath]; BOOL success = [FileManager fileExistsAtPath:databasepath]; if(success) { [FileManager removeItemAtPath:databasepath error:error]; } } </code></pre> <p>with these methods you can easily load database into iphone document folder of the app. Sorry about the formatting. and appVersionNo is a field in a tableCalled versionInfo the default value is 1</p>
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    1. POCopying data to the Application Data folder on the iPhone
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    1. USRahul Vyas
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