At the end I just want to say if you want to learn mongoDB, First practice with youself. After that, you just need to sort. You need to group twice to solve this problem. Don’t include their quiz scores in the calculation. Some students have three homework assignments, etc. Also, you will need a filtering step to get rid of all documents where the city does not start with the select set of initial characters. Please choose your answer below for the most prolific comment author:.

To be clear, each student’s average includes only exams and homework grades. At the end I just want to say if you want to learn mongoDB, First practice with youself. For this set, there are only documents and zip codes , and all of them are in New York, Connecticut, New Jersey, and California. Friday, 8 September Week 5: Check all that apply. Then import into your blog database as follows:.

## Mongodb M101J Homework 1 1 Answers

Once you’ve generated your aggregation query and found your answer, select it from the choices below. At the end I just want to say if you want to hommework mongoDB, First practice with youself. Please use the Aggregation pipeline to solve this problem.

To be clear, each student’s average includes only exams and homework grades. Please choose your answer below for the most prolific comment author:. For example, to extract the first character from the city field, you could write this pipeline:. Who’s the easiest grader on campus? Using the andwer framework, calculate the sum total of people who are living in a zip code where the city starts with one of those possible first characters.

Friday, 8 September Week 5: In this problem you will calculate the homewrok of people who live in a zip code in the US where the city starts with one of the following characthers:. Don’t include their quiz scores in the calculation.

# [SOLUTION] WEEK 5 : INDEXES AND PERFORMANCE : MJS: MONGODB FOR DEVELOPERS

Note that not all students in the same class have the same exact number of assessments. In this assignment you will use the aggregation framework to find the most frequent author of wnswer on your blog If you notice that while importing, there are a few duplicates fear not, this is expected and will not affect your answer.

You must figure out the GPA that each student has achieved in a class and then average those numbers to get a class average. The answer for Homesork and NJ using this data set is 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.

For this problem, we have used a subset of the data you previously used in zips. In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog.

For this set, there are only documents and zip codesand all of them are in New York, Connecticut, New Jersey, and California.

Choose the answer below. We will be using a data set similar to ones we’ve used before. For this problem, assume that a city name that appears in more than one state represents two separate cities.

You will need to probably change your projection to send more info through than just that first character. We will take these are the prefered cities to live in chosen by this instructor, given is special affection to this set of characters! Different states might have the same city name.

Some students have three homework assignments, etc. Now use the aggregation framework to calculate the author with the greatest number of comments.

## M101 Homework 3 1

Download the handout and mongoimport. Check all that apply.

Then import into your blog database as follows:. To help you verify your work before submitting, the author with the fewest comments is Mariela Sherer and she commented times.

# Study IQ World: Week 5 : AGGREGATION FRAMEWORK : MP: MongoDB for Developers

Import it into your mongod using the following command from the command line:. Please round the answer to a whole number. After that, you just need to sort. Crunching the Zipcode mongod Please calculate the average population of cities in California abbreviation CA and New York NY taken together with populations over 25, Start by downloading the handout zip file for this problem.