MongoDB University   M121: The MongoDB Aggregation Framework


Topic Replies Views Activity
[NOTICE] Please do not post potential answers in the forums

Hi, Please do not post potential answers in the forums, we should give all the students the opportunity to solve the labs themselves. Thank you very much for your understanding. José Carlos

12 1273 March 5, 2021
About the M121: The MongoDB Aggregation Framework category
0 3125 August 7, 2018
I do not fully agree on the example solution for $unwind lab
2 548 January 17, 2022
My total count is 24 documents. Not getting any answer!
1 395 December 27, 2021
Is using double quotes compulsory to enclose property names?
queries
10 695 January 6, 2022
Chapter1. Optional Lab - Expressions with $project. Just need to clarify the task statement
aggregation
1 267 January 4, 2022
Chapter 2 Lab 2
9 712 January 4, 2022
M121-Chapter1-Optional Lab- Is it possible in only 3 stages?
6 322 January 3, 2022
Sample data for M121
2 373 December 28, 2021
In the first homework of chapter one: I am getting count as 24 & not 23!
queries
4 345 December 26, 2021
Lab $match (My answer got 14 results)
queries
7 339 December 28, 2021
Chapter 1: Basic Aggregation - $match and $project Lab - $match
11 862 December 23, 2021
Question regarding $graphLookup
2 241 December 23, 2021
Chapter 3: Core Aggregation - Combining Information Lab - Using $lookup Feedback
aggregation
2 447 December 20, 2021
M121 Chapter 6 stocks collection - where?
2 368 December 18, 2021
Outgoing port tester
2 613 December 17, 2021
Going from M001 to M121 and see right DBS in Atlas
8 447 December 16, 2021
How to change port to 27017
1 392 December 16, 2021
Lab: Using Cursor-like Stages [Incorrect answer]
4 285 December 15, 2021
Aggregate query by Year and Month in MongoDB
aggregation ,  mongodb-shell ,  queries
3 572 December 15, 2021
Aggregation pipeline optimization - coalescence
3 360 December 14, 2021
[Error] Chapter 2: Utility Stages Lab: Using Cursor-like Stages
6 783 December 13, 2021
M121: Dataset (movies) schema not corsepond with descriptions in labs
1 223 December 10, 2021
Creating views using db.createCollection
queries
3 323 December 9, 2021
Aggregation / Chapter 3. Lab - $group and Accumulators - Error using accumulator stages
4 483 December 8, 2021
How should I put $cond into $match?
2 363 December 7, 2021
What's wrong with my query? Chapter 1- Lab - $match
3 364 December 6, 2021
Lab $facets ---- Chapter 4
5 820 November 29, 2021
Chapter 3 Lab I - $group and Accumulators - Receiving Null for Result
aggregation
1 335 November 29, 2021
Connecting to Robo 3T with from the Atlas Cluster
4 406 December 16, 2021