gistfile1.java

private void copyDataBase() throws IOException{

	// Path to the just created empty db
	String outFileName = DB_PATH + DB_NAME;

	//Open the empty db as the output stream
	OutputStream myOutput = new FileOutputStream(outFileName);

	//transfer bytes from the inputfile to the outputfile		
	byte[] buffer = new byte[1024];
	int length;
	
	//multipart copy
	//@see http://stackoverflow.com/questions/4391796/big-sqlite-database-in-android-application
	//@see http://androidsnips.blogspot.com/2010/10/copying-larger-database-files-in.html
	int parts = 3;
	for (int i = 1; i <= parts; i++){
		InputStream myInput = myContext.getAssets().open(DB_NAME + '.' + i);
		
		while ((length = myInput.read(buffer))>0){
			myOutput.write(buffer, 0, length);
		}
		myInput.close();
	}
	
	//Close the streams
	myOutput.flush();
	myOutput.close();
}