For this problem, assume that a city name that appears in more than one state represents two separate cities. 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, Type the validation code below. Download the handout and mongoimport. Choose the answer below. Notes and homework related to Week 4: Then import into your blog database as follows:.

Inwizards offers Mongo database services for our Mongodb Client. Anuj Singh January 4, at 1: We are also providing a patriotic if you are an American data set for the blog. Which of the following queries can utilize at least one index to find all matching documents, or to sort? You must load this dataset to complete the problem. For example, to extract the first character from the city field, you could write this pipeline:.

You can change the shard key on a collection if you desire.

m101p homework answers week 4

Using the aggregation framework, calculate the sum total of people who are living in a zip code where the week starts with one of those possible first characters. Once you have added the indexes to make those pages fast run the following. Posted by Unknown at Once you’ve generated your aggregation query and found your answer, select it from the choices below.

You must load this dataset to complete the problem. Check all that apply. In this problem you will analyze a profile log taken from a different mongoDB instance and you will import it into a collection named sysprofile.

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m101p homework answers week 4

Which of the following queries can utilize at least one index to find all matching documents, or to sort? You then have a set of homework exercises to run on your own machine, and a final 10 anwers 11 final exam questions to answer that week.

M101p week 5 homework answers

The first week was homewodk dull, and I decided not to finish the I’ve asked for more work, worksheets, homework, anything and he has nothing. By fast, we mean that indexes should be in place to satisfy these queries such that we only need to scan the number of documents we are going to return. You will be using the zip code anwwers data set, which you will find in the ‘handouts’ link in this page.

Inwizards offers Mongo database services for our Mongodb Client.

m101p homework answers week 4

Different states might have the same city name. Omit -p from mkdir.

Mp week 5 homework answers

Those students achieved a class average of Prefered Cities to Live! Try for your self. To start, please download sysprofile. To figure out what queries you need to optimize, you can read the blog.

M101P WEEK 4

Download the handout and mongoimport. Which of the following statements are true about choosing and using a shard key?

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On unix, this could be done as follows: In this homework assignment you will be adding some indexes to the post collection to make the blog fast. After that, you just need to sort. Type the following commands into the mongo shell: To be clear, each student’s average includes ho,ework exams and homework grades.

At the end I just want to say if you want to learn mongoDB, First practice with youself.

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

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:. From the mongo shell: The blog home page The page that displays blog posts by tag http: Anonymous September 23, at 7: In this assignment you will use the aggregation framework to find the most frequent author of comments on your blog.

What can you infer from the following explain output?

To help you verify your work before submitting, the author with the fewest comments is Mariela Sherer and she commented times.