Little SQLite parallel test (2x2 in parallel) - should produce 4k recs (adopted from https://github.com/mapbox/node-sqlite3)

sqlite_runner.js

var sqlite3 = require('sqlite3').verbose();
var db = new sqlite3.Database('mydb.sqlite');
db.run("CREATE TABLE if not exists lorem (num NUMBER, info TEXT)");
var stmt = db.prepare("INSERT INTO lorem VALUES (?, ?)");
var stmtIncr = db.prepare("update lorem set num=num+1000 where num<1000");
var i = 0;
function nextRun() {
  if(i < 1000) {
	console.log(" > " + i);
	stmt.run(i, "Ipsum " + i);
	if (((i + 1) % 100) == 0) {
	  console.log(" >> upd");
	  stmtIncr.run();
	}
    i++;
    setTimeout(nextRun, 50);
  } else {
    stmt.finalize();
    stmtIncr.finalize();
	printRes();
  }	  
};
function printRes() {
  db.each("SELECT rowid AS id, num, info FROM lorem order by num", function(err, row) {
    console.log(row.id + ": " + row.info + " (" + row.num + ")");
  });
  db.close();
};
nextRun();

SQLiteJDBC.java

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class SQLiteJDBC {

	public static void main(String args[]) throws SQLException, ClassNotFoundException {
		Connection c = null;
		Class.forName("org.sqlite.JDBC");
		c = DriverManager.getConnection("jdbc:sqlite:mydb.sqlite");
		c.createStatement().executeUpdate("CREATE TABLE if not exists lorem (num NUMBER, info TEXT)");
		PreparedStatement stmt = c.prepareStatement("INSERT INTO lorem VALUES (?, ?)");
		PreparedStatement stmtIncr = c.prepareStatement("update lorem set num=num+1000 where num<1000");
		for (int i = 0; i < 1000; i++) {
			System.out.println(" > " + i);
			stmt.setInt(1, i);
			stmt.setString(2, "Ipsum " + i);
			stmt.executeUpdate();
			if (((i + 1) % 100) == 0) {
				System.out.println(" >> upd");
				stmtIncr.executeUpdate();
			}
			try {
				Thread.sleep(50);
			} catch (InterruptedException e) {
				// ignore spurious wakeups
			}
		}
		ResultSet res = c.createStatement().executeQuery("SELECT rowid AS id, num, info FROM lorem order by num");
		while (res.next()) {
			System.out.println(res.getString("id") + ": " + res.getString("info") + " (" + res.getInt("num") + ")");
		}
		c.close();
	}

}