Android SQLite database: slow insertion

Question

I need to parse a fairly large XML file (varying between about a hundred kilobytes and several hundred kilobytes), which I\'m doing using Xml#parse(String, ContentHand

Answer 1

Since the InsertHelper mentioned by Yuku and Brett is deprecated now (API level 17), it seems the right alternative recommended by Google is using SQLiteStatement.

I used the database insert method like this:

database.insert(table, null, values);

After I also experienced some serious performance issues, the following code speeded my 500 inserts up from 14.5 sec to only 270 ms, amazing!

Here is how I used SQLiteStatement:

private void insertTestData() {
    String sql = "insert into producttable (name, description, price, stock_available) values (?, ?, ?, ?);";

    dbHandler.getWritableDatabase();
    database.beginTransaction();
    SQLiteStatement stmt = database.compileStatement(sql);

    for (int i = 0; i < NUMBER_OF_ROWS; i++) {
        //generate some values

        stmt.bindString(1, randomName);
        stmt.bindString(2, randomDescription);
        stmt.bindDouble(3, randomPrice);
        stmt.bindLong(4, randomNumber);

        long entryID = stmt.executeInsert();
        stmt.clearBindings();
    }

    database.setTransactionSuccessful();
    database.endTransaction();

    dbHandler.close();
}