M101 HOMEWORK 2.1

Blog User Sign-up and Login Download the handout and unpack it. You should not need to touch any other code. Find all exam scores greater than or equal to 65, and sort those scores from lowest to highest. To confirm you are on the right track, here are some queries to run after you process the data with the correct answer shown:. To start, please download sysprofile. Now run the application to get the answer to hw Isolate those queries and use explain to explore.

This dataset holds the same type of data as last week’s grade collection, but it’s modeled differently. Use mongorestore to restore the dump into your running mongod. Write a program in the language of your choice that will remove the lowest homework score for each student. Note you will need to have your path setup correctly to find mongorestore. Posted by Unknown at Note that this requires Node.

With the new schema, this problem is a lot harder and that is sort of the point. In this problem, you ho,ework be using an old weather dataset. You might want to start by inspecting it in the Mongo shell.

m101 homework 2.1

To confirm you are on the right track, here are some queries to run after you process the data with the correct answer shown: If you select all the weather documents, m1011 can sort first by state, then by temperature.

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It should redirect you to the welcome page and say: In this problem, you will be using a collection of student scores that is similar to what we used in the lessons. In this problem you will 1m01 a profile log taken from a mongoDB instance. If you have the mongodb driver installed correctly, this will print out the message ‘Answer: When it says “Correct amount of data documents.

You can verify that you’ve imported the data correctly by running the following commands in the mongo shell:. This homework is meant to give you practice using the “package. This dataset holds the same type of data as last week’s grade collection, but it’s modeled differently.

Homework homework 3.1 mongodb

Do this by opening a terminal window mac or cmd window windows and navigating to the directory so that the dump directory is directly beneath you. If everything m011 working properly, you should be able to start the blog by typing: 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.

MongoDB for Developers Homework 2. Calling ‘npm install’ with no specific package tells npm to look for ‘package. Now it’s your turn to analyze the data set.

m101 homework 2.1

Find all exam scores greater than or equal to 65, and sort those scores from lowest to highest. After you run the blog, you should see the message: The correct result will be: Then install the mongodb driver: The database calls that you are going to add will add a new user upon sign-up and validate a login by retrieving the right user document.

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You must load this dataset to complete the problem. There is a 2.1 of the video database included in the handouts for the “Creating Documents” lesson.

Mongodb homework .net

Use mongorestore to restore the dump into your running mongod. The blog home page The page that displays blog posts by tag http: There is also a views directory which contains the templates for the project. To figure out what queries you need to optimize, you homewkrk read the code in posts.

m101 homework 2.1

Let us count the number of students we have: 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. There are hyperlinks from the 2.1 tags to the page that displays the 10 most recent blog entries for that tag.

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