数仓 即席查询 之 Kylin 查询

需求：

不同地区下的订单金额数

select bp.region_name,sum(sku_num) from dwd_order_detail
od join dim_base_province bp on od.province_id=bp.id
group by bp.region_name;

实现每日构建Cube：https://blog.csdn.net/weixin_45417821/article/details

BI工具集成

https://blog.csdn.net/weixin_45417821/article/details

JDBC代码：

package com.kylin;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;

public class Gmall_Kylin {
    public static void main(String[] args) throws Exception{
        //Kylin_JDBC 驱动
        String KYLIN_DRIVER = "org.apache.kylin.jdbc.Driver";

        //Kylin_URL
        String KYLIN_URL = "jdbc:kylin://hadoop102:7070/gmall";

        //Kylin的用户名
        String KYLIN_USER = "ADMIN";

        //Kylin的密码
        String KYLIN_PASSWD = "KYLIN";

        //添加驱动信息
        Class.forName(KYLIN_DRIVER);

        //获取连接
        Connection connection = DriverManager.getConnection(KYLIN_URL, KYLIN_USER, KYLIN_PASSWD);



        //预编译SQL
        String sql = "select bp.region_name,sum(sku_num) from dwd_order_detail od join dim_base_province bp on od.province_id=bp.id group by bp.region_name";
        PreparedStatement ps = connection.prepareStatement(sql);

        //执行查询
        ResultSet resultSet = ps.executeQuery();

        //遍历打印
        while (resultSet.next()) {
            System.out.println(resultSet.getString(1) + ":" + resultSet.getInt( 2 ));
        }
    }

}

代码结果如下：

Zepplin