Newer Post Older Post Home. Different states might have the same city name. In this problem, you will be using a collection of student scores that is similar to what we used in the lessons. In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog Prefered Cities to Live! Now it’s your turn to analyze the data set.

You need to group twice to solve this problem. If everything is working properly, you should be able to start the blog by typing: To be clear, each student’s average includes only exams and homework grades. For this problem, we have used a subset of the data you previously used in zips. At the end I just want to say if you want to learn mongoDB, First practice with youself.

We will be using a data set similar to ones we’ve used before. Posted by Unknown at You should see three files at the highest level: Choose the answer below. At the end I just want to say if monggodb want to learn mongoDB, First practice with youself.

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 The templates comprise the view.

# [Solution] Week 2 : CRUD: MP: MongoDB for Developers

Note that not all students in the same class have the same exact number of assessments. This involves calculating an average anwsers each student in each class of all non-quiz assessments and then averaging those numbers to get a class average.

You need to group twice to solve this problem. Prefered Cities to Live! Then import into your blog database as follows:.

Please choose your answer below for the most prolific comment author:. There is a dump of the video database included in the handouts for the “Creating Documents” lesson. A city might have multiple zip codes.

## M101J Mongodb For Java Developers Homework Answers Week 2

In this problem, you will be using a collection of student scores that is similar to what we used in the lessons. The documents look like this: For this problem, assume that a city name that appears in more than one state represents two separate cities.

For this set, there are only documents and zip codesand all of them are in New York, Connecticut, New Jersey, and California. Now it’s your turn to analyze the data set. Crunching the Zipcode dataset Please calculate the average population of cities in California abbreviation CA and New York NY taken together with populations over 25, We will take these are the prefered cities to live in chosen by this instructor, given is special affection to this set of characters!

Those students achieved a class average of MongoDB for Developers Homework 2. Don’t include their quiz scores in the calculation. Try for your self. Who’s the easiest grader on campus? In this problem you will calculate the number of people who live in a zip code in the US where the city starts with one of the following characthers:.

Your task is to calculate the class with the best average student performance.

# MongodbChamps: MJ: MongoDB for Java Developers – Homework

Download the handout and mongoimport. Blog User Sign-up and Login Download the handout and unpack it.

Import it into your mongod using the following command from the command line:. Now use the aggregation framework to calculate the author with the greatest number of comments.

Some students have three homework assignments, etc. First, let’s confirm your data is intact; the number of documents should be deveolpers Please use the Aggregation pipeline to solve this problem.