The blog home page The page that displays blog posts by tag http: There is a dump of the video database included in the handouts for the “Creating Documents” lesson. You should not need to touch any other code. We have provided the full code for the blog application and you don’t need to make any changes, or even run the blog. When it says “user creation successful” and “user login successful”, you can Turn in your assignment.
To get started, please download hw There are hyperlinks from the post tags to the page that displays the 10 most recent blog entries for that tag. There is also a ‘views’ directory which contains the templates for the project and a ‘routes’ directory which contains our express routes. This assignment requires Mongo 2. You might want to start by inspecting it in the Mongo shell. From the top of this page, there was one additional program that should have been downloaded: 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
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. That will return one document.
You should see three files at the highest level: Here are some URLs that must work when you are done.
Hello from MongoDB!
Use mongorestore to restore the dump into your running mongod. Write that text in the text box below. Please provide the value corresponding to the “answer” key without the surrounding quotes from the document returned.
Do this by opening a terminal window mac or cmd window windows and navigating to the directory so that the dump directory is directly hmework you. Now run the application to get the answer to hw Write a program in the language of your choice that will homeeork the lowest homework score for each student.
Calling ‘npm install’ with no specific package tells npm to look for ‘package. Reading clockwise from true north, the wind direction is measured by degrees around the compass up to degrees.
Homework homework 3.1 mongodb
If you goto http: In this homework assignment you will be adding some indexes to the post collection to make the blog fast. After you run the blog, you should see the message: Workspace infoupdated a year ago mongodb-courses-mjs. To confirm you are on the right track, here are some queries to run after you process the data with the correct answer shown: 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.
With the new schema, this problem is a lot harder and that is sort of the point. Use the weather dataset that you imported in HW 2. If everything is working hhomework, you should be able to start the blog honework typing: This is a comma separated value file that you can import into MongoDB as follows:. When you login or sign-up, the blog will redirect to http: Note that this requires Node.
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 We have provided the full code for the blog application and you don’t need to make any changes, or even run the blog.
This dataset holds the same type of data as last week’s grade collection, but it’s modeled differently. Since there is a single document for each student containing an array of scores, you will need to update the scores array ,101 remove the homework.
We are also providing a patriotic if you are an American data set for the blog. Check all that apply.
Note that this is only an example and not the actual document that you would be updating. This assignment requires Mongo 2. Hmoework are entries with lots of comments and tags. Which of the following queries can utilize at least one index to find all matching documents or to sort?
Don’t remove a quiz or an exam! In this problem, you will be using an old weather dataset.