March 2016
Intermediate to advanced
480 pages
15h 49m
English
book
MongoDB in Action, Second Edition
by Tim Hawkins, Kyle Banker, Shaun Verch, Douglas Garrett, Peter Bakkum
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Appendix B. Design patterns
The early chapters of this book implicitly advocate a certain set of design patterns. Here I’ll summarize those patterns and augment them with a few patterns that fall outside the flow of the text.
B.1. Embed vs. reference
Suppose you’re building a simple application in MongoDB that stores blog posts and comments. How do you represent this data? Do you embed the comments in their respective blog post documents? Or is it better to create two collections, one for posts and the other for comments, and then relate the comments to the posts with an object ID reference (_id)?
This is the problem of embedding versus referencing, and it’s a common source of confusion for new users of MongoDB. Fortunately, there’s a simple ...
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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.