M101 HOMEWORK 4.1

M101 HOMEWORK 4.1

Now query the profile data, looking for all queries to the students collection in the database school2, sorted in order of decreasing latency. To do this, first download the hw But you can, for fun. Which of the following queries can utilize at least one index to find all matching documents or to sort? Workspace info , updated a year ago mongodb-courses-mjs.

What can you infer from the following explain output? 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. Newer Post Older Post Home. They can also choose to to point mongoProc to any 2. Let’s see what Tamika Schildgen’s record looks like: The blog has been enhanced so that it can also display the top 10 most recent posts by tag. You should not need to touch any other code.

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m101 homework 4.1

Note that this requires Node. Express server listening on port If you goto http: Inwizards offers Mongo database services for our Mongodb Client.

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Then install all the dependencies listed in the ‘package. This is a sample document from the weather data collection: They can also choose to to point mongoProc to any 2. In this problem you will analyze a profile log taken from a mongoDB instance. From the mongo shell: The blog home page The page that displays blog posts by tag http: In this problem, you will be using an old weather dataset.

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Write a program in the language of your choice that will remove the lowest homework score for each student. To confirm you are on the right track, here are some queries to run after you process the data with the correct answer shown: Which of the following queries can utilize at least one index to find all matching documents, or to sort? To start, please download sysprofile. You must load this dataset to complete the problem.

Posted by Unknown at One way is to find the lowest homework in code and then update the scores array with the low homework pruned. What is the latency of the longest running operation to the collection, in milliseconds? Please provide the value corresponding to the “answer” key without the surrounding quotes from the document returned. What is the latency of the longest running operation to the collection, in milliseconds?

From the top of this page, there was one additional program that should have been downloaded: To figure out what queries you need to optimize, you can read the code in posts. To start, please download sysprofile. Isolate those queries and use explain to explore. This homework is meant to give you practice using the “package.

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ObjectId “beaabecff””Day”: When it says “user creation successful” and “user login successful”, you can Turn in your assignment. If everything is working properly, you should be able to start the blog by typing: You can verify that you’ve imported the data jomework by running the following commands in the mongo shell:. Your assignment is to figure out the “State” that recorded the lowest “Temperature” when the wind was coming from the west “Wind Direction” between and There is also a ‘views’ directory which contains the templates for the project and a ‘routes’ directory which contains our express routes.

The blog stores its data in the blog database in two collections, users and sessions.

m101 homework 4.1

Note that this is only an example and not the actual document that you would be updating. Then install the mongodb driver: