static String stmt_1 = "CREATE TABLE Department("
    + "id INT PRIMARY KEY, "
    + "name CHAR(50) NOT NULL)";

static String stmt_2 = "CREATE TABLE Employee("
    + "id INT PRIMARY KEY, "
    + "last_name CHAR(50) NOT NULL, "
    + "first_name CHAR(50) NOT NULL, "
    + "dept_id INT NOT NULL, "
    + "NOT NULL FOREIGN KEY(dept_id) "
    + "REFERENCES Department(id))";

static String stmt_3 = "CREATE INDEX ON Employee(last_name, first_name)";

void createDb(Connection connection) throws ULjException {
    PreparedStatement ps;
    ps = connection.prepareStatement(stmt_1);
    ps.execute();
    ps.close();
    ps = connection.prepareStatement(stmt_2);
    ps.execute();
    ps.close();
    ps = connection.prepareStatement(stmt_3);
    ps.execute();
    ps.close();
}