Check all that apply. Import it into your mongod using the following command from the command line:. Try for your self. Please choose your answer below for the most prolific comment author:. For this problem, assume that a city name that appears in more than one state represents two separate cities. At the end I just want to say if you want to learn mongoDB, First practice with youself.

For example, to extract the first character from the city field, you could write this pipeline:. 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:. To help you verify your work before submitting, the author with the fewest comments is Mariela Sherer and she commented times. Please use the Aggregation pipeline to solve this problem. You need to group twice to solve this problem. Choose the answer below.

Prefered Nongodb to Live! You must figure out the GPA that each student has achieved in a class and then average those numbers to get a class average. For this problem, assume that a city name that appears in more than one state represents two separate cities. For example, to extract the first character from the city field, you could write this pipeline:. At the end I just want to say if you want to learn mongoDB, First practice with youself. Who’s the easiest grader on campus?

Once you’ve generated your aggregation query and found your answer, select it from the choices below.

# Fan+: MongoDB MP HW5 answers

If you notice that while importing, there are a few duplicates fear not, this is answees and will not affect your answer. The documents look like this: Check all that apply. Please use the Aggregation pipeline answwers solve this problem. After that, you just need to sort. Please round the answer to a whole number. 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:.

We will be using a data set similar to ones we’ve used before. A city might have answdrs zip codes. To be clear, each student’s average includes only exams and homework grades. Choose the answer below. Those students achieved a class average of For this problem, we have used a subset of the data you previously used in zips.

Now use the aggregation framework to calculate the author with the greatest number of comments. In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog Different states might have the same city name.

51. 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. Then import into your blog database as follows:. 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.

Start by downloading the handout zip file for this problem. Note that not all students in the same class have the same exact number of assessments. Download the handout and mongoimport.

You need to group twice to solve this problem. Also, you will need a filtering step to get rid of all documents where the city does not start with bomework select set of initial characters. We will take these are the prefered cities to live in chosen by this instructor, given is special affection to this set of characters!

Try for your self. Your task is to calculate the class with the best average student performance.

## Mongodb M101J Homework 1 1 Answers

Import it into your mongod using the following command from the command line:. Please choose your answer below for the most prolific comment author:. Some students have three homework assignments, etc.