updatedata.java

java课程的资料以及实验的代码

import java.sql.*;
class UpdateData{
	public static void main(String[] args){
		try 
		{ 
			Connection con; 
			Statement stmt; 
			ResultSet rs; 
		
			//加载驱动程序，下面的代码为加载JDBD-ODBC驱动程序 
			Class.forName("sun.jdbc.odbc.JdbcOdbcDriver"); 
			//用适当的驱动程序连接到数据库，pubs是系统dsn名 
			String url="jdbc:odbc:pubs"; 
			//建立连接
			con=DriverManager.getConnection(url,"sa",""); 
	
			//创建一个Statement并执行更新
			stmt = con.createStatement(); 
			stmt.executeUpdate("update authors set phone='408 496-7233' where au_id= '172-32-1176' ");
	
			//查询更新后记录
			rs = stmt.executeQuery("SELECT * from authors where au_id='172-32-1176'"); 
			rs.next();
			System.out.println("当前电话为："+ rs.getString("phone")); 
			
			//stmt.close();
			//con.close();
		}catch(Exception e){
			System.out.println(e);
		}
	}
}