MONGODB WEEK 4.4 HOMEWORK ANSWERS

Since there is a single document for each student containing an array of scores, you will need to update the scores array and remove the homework. Please provide the value corresponding to the “answer” key without the surrounding quotes from the document returned. Isolate those queries and use explain to explore. Suppose you have a collection with the following indexes: The blog has been enhanced so that it can also display the top 10 most recent posts by tag. If you have all the dependencies installed correctly, this will print the message ‘Express server started on port ‘.

That will return one document. Then install the mongodb driver: Write a program in the language of your choice that will remove the lowest homework score for each student. We are also providing a patriotic if you are an American data set for the blog. With it, you can test your code and look at the Feedback section.

Mongodb M101J Homework 1 1 Answers

There are entries with lots of comments and tags. This is a sample document from the weather data collection: You must load this dataset to complete the problem.

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Anonymous September 23, at 7: Now query the profile data, looking for all queries to the students collection in the database school2, sorted in order of decreasing latency. To start, please download sysprofile. To do this, first download the hw You must load this dataset to complete the problem. To confirm you are on the right track, here are some queries to run after you process the data with the correct answer shown: Posted by Unknown at In this homework assignment you will be adding some indexes to the post collection to make the blog fast.

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If you goto http: Which of the following queries can utilize at least one index to find all matching documents or to sort?

Mongodb MJ Homework 1 1 Answers

With it, you can test your code and look at the Feedback section. To figure out what queries you need to optimize, you can read the blog. By fast, we mean that indexes should be in place to satisfy these queries such that we only need to scan the number answeds documents we are going to return.

mongodb week 4.4 homework answers

We are also providing a patriotic if you are an American data set for the blog. This homework is meant to give you practice hoomework the “package. It should redirect you to the welcome page and say: To get started, please download hw The blog home page The page that displays blog posts by tag http: Don’t remove a quiz or an exam!

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. Your assignment for this part of the homework is to install the mongodb driver for Node. What anseers you infer from the following explain output?

We are also providing a patriotic if you are an American data ansswers for the blog. This dataset holds the same type of data as last week’s grade collection, but it’s modeled differently. Express server listening on port If you goto http: The blog stores its data in the blog database in two collections, users and sessions. When you login or sign-up, the blog will redirect to http: But you can, for fun.

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[Solution] Week 4 :Performance : MP: MongoDB for Developers

Once you have anwers the indexes to make those pages fast, just validate your work with MongoProc. There are hyperlinks from the post tags to the page that displays the 10 most recent blog entries for that tag. When it says “user creation successful” and “user login successful”, you can Turn in your assignment. There is also a ‘views’ directory which contains the templates for the project and a ‘routes’ directory which contains our express routes.

Since there is a single document for each student containing an array of scores, you will need to update the scores array aanswers remove the homework.

mongodb week 4.4 homework answers

If you have all the dependencies installed correctly, this will print the message ‘Express server started on port ‘.