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  • 7:JDBC -1

    package com.qc.db1;
    
    import java.sql.Connection;
    import java.sql.DriverManager;
    import java.sql.ResultSet;
    import java.sql.SQLException;
    import java.sql.Statement;
    
    public class DbConnection1 {
    
        public static void main(String[] args) {
            //1:加载驱动
            try {
                Class.forName("oracle.jdbc.driver.OracleDriver");
            } catch (ClassNotFoundException e) {
                e.printStackTrace();
            }
        
            //2:建立连接
            Connection conn = null;
            Statement stmt = null;
            ResultSet res = null;
            try {
                //连接数据库
                conn = DriverManager.getConnection("jdbc:oracle:thin:@localhost:1521:orcl","scott","tiger");
                //编写sql语句
                String sql = "insert into dept values (70,'开发三部''去去去')";
                //发送sql语句,并执行
                stmt = conn.createStatement();
                //说明  insert update delete 用 excuteUpdate
                //select 用 excuteQuery 
                int ret = stmt.executeUpdate(sql);
                //增删改判断结果集即可,查询需遍历结果集
                if(ret > 0)
                    System.out.println("执行成功");
                else
                    System.out.println("执行失败");
            } catch (SQLException e) {
                e.printStackTrace();
            }
        }
    }
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  • 原文地址:https://www.cnblogs.com/miaomeng/p/8945887.html
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