bulk insert from Java into Oracle

Question

I need to insert many small rows rapidly into Oracle. (5 fields).

With MySQL, I break the inserts into groups of 100, then use one insert statement for every group o

Answer 1

You can use Spring's DAO module to batch insert many rows.

An example that inserts a collection of Order objects into the database in one update:

public class OrderRepositoryImpl extends SimpleJdbcDaoSupport implements
        OrderRepository {

    private final String saveSql = "INSERT INTO orders(userid, username, coffee, coffeename, amount) "
            + "VALUES(?, ?, ?, ?, ?)";

    public void saveOrders(final Collection orders) {
        List ordersArgumentList = new ArrayList(orders
                .size());

        Object[] orderArguments;
        for (Order order : orders) {
            orderArguments = new Object[] { order.getUserId(),
                    order.getUserName(), order.getCoffe(),
                    order.getCoffeeName(), order.getAmount() };

            ordersArgumentList.add(orderArguments);
        }

        getSimpleJdbcTemplate().batchUpdate(saveSql, ordersArgumentList);
    }
}