In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog Then import into your blog database as follows:. You can type rs. Friday, 8 September Week 5: Now use the aggregation framework to calculate the author with the greatest number of comments. What would be the appropriate settings for w and j? Ankit Raina May 7, at 3:
In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog Download the handout and mongoimport. If you imported it correctly, you can go to the test database in the mongo shell and conform that. Import it into your mongod using the following command from the command line: Now connect to a mongo shell and make sure it comes up Now you will create the replica set.
We will be using a data set similar to ones we’ve used before.
The output of sh. What would be the appropriate settings for w and j?
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A city might have multiple zip codes. We will check that it works with validate. Newer Post Older Post Home. Using the aggregation framework, calculate the sum total of people who are living in a zip code where the city starts with a digit. You must figure out the GPA that each student has achieved in a class and then average those numbers to get a class average. Note that are three commands.
The documents look like this: Homeaork students achieved a class average of Please round the answer to a whole number. For this problem, assume that a city name that appears in more than one state represents two separate cities. Your task is to calculate the class with the best average student performance.
Choose the answer below. If you notice that while importing, there are a few duplicates fear not, this is expected and will not affect your answer. Note that not all students in the same class have the same exact number of assessments.
Sunday, March 12, [Solution] Week 6: After that, you just need to sort. You have a sharded system with three shards and have sharded the hhomework “students” in the “school” database across those shards. Posted by Unknown at 6: Please choose your answer below for the most prolific comment author:.
Import it into your mongod using the following command from the command line:.
Study IQ World: Week 5 : AGGREGATION FRAMEWORK : MP: MongoDB for Developers
Let’s suppose you have a five member replica set and want to assure that writes are committed to the journal and are acknowledged by at homwork 3 nodes before you proceed forward. Create three directories for the three mongod processes. Different states might have the same city name. Some students have three homework assignments, etc.
Mongodb M101J Homework 1 1 Answers
This involves calculating an average for each student in each class of all non-quiz assessments and then averaging those numbers to get a class average.
Also omit –fork and use start mongod with Windows compatible paths i. The answer for CT and NJ using this data set is Now connect to a mongo shell and make sure it comes up Now you will create the replica set.
For example, to extract the first digit from the city field, you could homewor this query: Then import into your blog database as follows: Ankit Raina May 7, at 3: Check all that apply.