Watch full webinar here: https://bit.ly/2Jgb1uc
Coronavirus is spreading all over the world and has big impact on all the industries. How to acquire latest virus information from different countries and regions in real time to help organizations strategically plan and take actions accordingly and timely becomes very important.
Attend this webinar to learn:
- How business department acquires trustworthy data, gain deeper insights and fasten decision making
- How IT easily supports dynamic business requirements in real time
25. 25
Base Layer
Original source models
Semantic Layer
Logical DW model
Business Layer (optional)
De-normalized view for business
Reporting Layer (optional)
Pre-canned reports with calculated metrics
建立不同用途的模型层
36. 36
Denodo自治优化器带来极致性能
SELECT c.name, AVG(s.amount)
FROM customer c JOIN sales s
ON c.id = s.customer_id
GROUP BY c.state
与其他联合引擎相比,Denodo 如何工作
系统 执行时间 传输的数据 优化技术
Denodo 9 sec. 4 M 聚合下推
其他 125 sec. 302 M 无:全盘扫描
300 M 2 M
销售额 客户
连接
分组依据
2 M
2 M
销售额 客户
连接
按 ID 分组
按地区分组
要最大限度
下推至 EDW,
聚合将分为
2 个步骤:
•第 1 步按客户 ID
•第 2 步按地区
这样可以大幅
减少 Denodo 的
网络流量和
处理负荷