August 2012
Intermediate to advanced
192 pages
4h 55m
English
book
NoSQL Distilled: A Brief Guide to the Emerging World of Polyglot Persistence
by Pramod J. Sadalage, Martin Fowler
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Chapter 3. More Details on Data Models
So far we’ve covered the key feature in most NoSQL databases: their use of aggregates and how aggregate-oriented databases model aggregates in different ways. While aggregates are a central part of the NoSQL story, there is more to the data modeling side than that, and we’ll explore these further concepts in this chapter.
3.1. Relationships
Aggregates are useful in that they put together data that is commonly accessed together. But there are still lots of cases where data that’s related is accessed differently. Consider the relationship between a customer and all of his orders. Some applications will want to access the order history whenever they access the customer; this fits in well with combining the ...
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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.