September 2001
Beginner
544 pages
17h 43m
English
Content preview from DATA WAREHOUSING FUNDAMENTALS: A Comprehensive Guide for IT Professionals
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.
3.3. SIGNIFICANT TRENDS
Some experts feel that technology has been driving data warehousing until now. These experts declare that we are now beginning to see important progress in software. In the next few years, data warehousing is expected make big strides in software, especially for optimizing queries, indexing very large tables, enhancing SQL, improving data compression, and expanding dimensional modeling.
Let us separate out the significant trends and discuss each briefly. Be prepared to visit each trend, one by one—everyone has a serious impact on data warehousing. As we walk through each trend, try to grasp its significance and be sure that you perceive its relevance to your company's data warehouse. Be prepared to answer the question: What must you do to take advantage of the trend in your data warehouse?
Figure 3-3. Data warehousing products by functions.
3.3.1. Multiple Data Types
When you build the first iteration of your data warehouse, you may just include numeric data. But soon you will realize that including structured numeric data alone is not enough. Be prepared to consider other data types as well.
Traditionally, companies included structured data, mostly numeric, in their data warehouses. From this point of view, decision support systems were divided into two camps: data warehousing dealt with structured data; knowledge management involved unstructured data. ...
Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Read now
Unlock full access
More than 5,000 organizations count on O’Reilly
O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.