valuesjava中向Oracle数据库中插入数据，values中怎么写

java中向Oracle数据库中插入数据，values中怎么写

insert into emp values(?,?,?,?); 之后 对? 部分进行绑定变量如： PreparedStatementps = conn.prepareStatement ("insert into dept values (?, ?,?)"); //Changebatch size for this statement to 3 ((OraclePreparedStatement)ps).setExecuteBatch (3); ps.setInt (1, 23); ps.setString (2, "Sales"); ps.setString (3, "USA");