Insertion of thousands of contact entries using applyBatch is slow

Question

I\'m developing an application where I need to insert lots of Contact entries. At the current time approx 600 contacts with a total of 6000 phone numbers. The biggest contac

Answer 1

bulkInsert: For those interested, here is the code that I was able to experiment with. Pay attention to how we can avoid some allocations for int/long/floats :) this could save more time.

private int doBulkInsertOptimised(Uri uri, ContentValues values[]) {
    long startTime = System.currentTimeMillis();
    long endTime = 0;
    //TimingInfo timingInfo = new TimingInfo(startTime);

    SQLiteDatabase db = mOpenHelper.getWritableDatabase();

    DatabaseUtils.InsertHelper inserter =
        new DatabaseUtils.InsertHelper(db, Tables.GUYS); 

    // Get the numeric indexes for each of the columns that we're updating
    final int guiStrColumn = inserter.getColumnIndex(Guys.STRINGCOLUMNTYPE);
    final int guyDoubleColumn = inserter.getColumnIndex(Guys.DOUBLECOLUMNTYPE);
//...
    final int guyIntColumn = inserter.getColumnIndex(Guys.INTEGERCOLUMUNTYPE);

    db.beginTransaction();
    int numInserted = 0;
    try {
        int len = values.length;
        for (int i = 0; i < len; i++) {
            inserter.prepareForInsert();

            String guyID = (String)(values[i].get(Guys.GUY_ID)); 
            inserter.bind(guiStrColumn, guyID);


            // convert to double ourselves to save an allocation.
            double d = ((Number)(values[i].get(Guys.DOUBLECOLUMNTYPE))).doubleValue();
            inserter.bind(guyDoubleColumn, lat);


            // getting the raw Object and converting it int ourselves saves
            // an allocation (the alternative is ContentValues.getAsInt, which
            // returns a Integer object)

            int status = ((Number) values[i].get(Guys.INTEGERCOLUMUNTYPE)).intValue();
            inserter.bind(guyIntColumn, status);

            inserter.execute();
        }
        numInserted = len;
        db.setTransactionSuccessful();
    } finally {
        db.endTransaction();
        inserter.close();

        endTime = System.currentTimeMillis();

        if (LOGV) {
            long timeTaken = (endTime - startTime);
            Log.v(TAG, "Time taken to insert " + values.length + " records was " + timeTaken + 
                    " milliseconds " + " or " + (timeTaken/1000) + "seconds");
        }
    }
    getContext().getContentResolver().notifyChange(uri, null);
    return numInserted;
}