New MongoDB Aggregations book available electronically for free

Working with Data
1

I’m pleased to announce the publication of my new book, “Practical MongoDB Aggregations”

The book is available electronically for free for anyone to use at: https://www.practical-mongodb-aggregations.com/

More information is here: https://www.mongodb.com/article/practical-mongodb-aggregations-book/

I hope this helps some of the community here who are working with Aggregations!

Paul

4 Likes
2

Thank you, Paul, for writing the book and making it available for free to everyone. Appreciate it.

Aggregation pipeline is one of my favorite features, and there are times I have used it in place of jq and JMESPath because of the power and the flexibility it offers.

Mahi

1 Like
3

Thank you for the book, it’s been a helpful read so far. I was wondering if there are any db scaffolding scripts that go along with it. I see there are commands like use book-group-and-total; but I don’t know where those collections are defined. Any help would be appreciated.

4

Thanks for the book. Though I downloaded a PDF copy of the book a while back, I didn’t start reading it until yesterday. I am fairly new to MongoDB database programming, and I had found Aggregation Framework is a key tool for the database developer.

Though I had come across some of the features in the book (in the last couple of years I had been programming little bit), I found some interesting and useful information in the book. The introduction and background information is interesting and various features discussed are useful. The book makes a handy reference for me.

1 Like
5

Hi dmarr

The book is not aimed at absolute MongoDB beginners but that’s fine.

Have a look here with getting started with MongoDB and the Shell: https://docs.mongodb.com/manual/tutorial/getting-started/

This includes talking about switching databases (the “use” "scaffolding you refer to).

More help on getting started with MongoDB and Aggs is here: Getting Started - Practical MongoDB Aggregations Book

HTH

Paul

1 Like
6

Thanks @Paul_Done. I should have tried the example before assuming there was some scaffolding required. Simply running the use command without an existing database was enough to get it working.

1 Like
7

Ah yep that can be confusing when coming from relational. MongoDB has a flexible schema which means a database or collection does not have to be pre-defined or exist before you start using it. :smiley:

Paul

1 Like