void first() throws SQLException {
Connection c = base.getConnection();
c.createStatement().execute("drop table customer if exists");
c.createStatement().execute("drop table orders if exists");
c.createStatement().execute("drop table orderLine if exists");
c.createStatement().execute("create table customer(" +
"id int primary key, name varchar, account decimal)");
c.createStatement().execute("create table orders(" +
"id int identity primary key, customer_id int, total decimal)");
c.createStatement().execute("create table orderLine(" +
"order_id int, line_id int, text varchar, " +