M101P HOMEWORK 5.1

Check all that apply. If you imported it correctly, you can go to the test database in the mongo shell and conform that. To be clear, each student’s average includes only exams and homework grades. A set of grades are loaded into the grades collection. Different states might have the same city name. Using the aggregation 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.

At the end I just want to say if you want to learn mongoDB, First practice with youself. 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. After that, you just need to sort. Please round the answer to a whole number. Import it into your mongod using the following command from the command line:

You need to group twice to solve this problem.

m101p homework 5.1

A city might have multiple zip codes. In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog. A set of grades are loaded into the grades collection.

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Also, you will need a filtering step to get rid of all documents where the city m1001p not start with a digital Once you’ve generated your aggregation query and found your answer, select it from the choices below.

You will need to probably change your projection to send more info through than just that first character.

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m101p homework 5.1

Now use the aggregation framework to calculate the author with the greatest number of comments. Check all that apply. If you notice that while homswork, there are a few duplicates fear not, this is expected and will not affect your answer.

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. Using the aggregation framework, calculate the sum total of people who are living in a homewoek code where the city starts with a digit.

[Solution] Week 1 : Introduction : MP: MongoDB for Developers

You need to group twice to solve m101o problem. After that, you just need to sort. Please choose your answer below for the most prolific comment author: The answer for CT and NJ using this data set is The documents look like this: Your task is to calculate the class with the best average student performance. Then import into your blog homweork as follows:. In this problem you will homeworo the number of people who live in a zip code in the US where the city starts with one of the following characthers:.

For purposes of keeping the Hands On shell quick, we have used a subset of the data you previously used in zips. Please calculate the average population of cities in California abbreviation CA and New York NY taken together with populations over 25, A city might have multiple zip codes.

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Friday, 8 September Homeaork 5: We will be using a data set similar to ones we’ve used before. At the end I just want to say if you want to learn mongoDB, First practice with youself.

Note that not all students in the same class have the same exact number of assessments. There is also an issue with some versions of MongoDB 3. To help you verify your work before submitting, the author with the fewest comments is Mariela Sherer and she commented times.

MongoDB university mp chapter 5 homework – bigmongodb

Who’s the easiest grader on campus? For this set, there are only documents and zip codesand all of them are in New York, Connecticut, New Jersey, and California. Different states might have the same city name. You will need to probably change your projection to send more info through than just that first character.

m101p homework 5.1

Choose the answer below. Some students have three homework assignments, etc. For example, to extract the first digit ho,ework the city field, you could write this query: Using the aggregation 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.