MONGODB WEEK 4.4 HOMEWORK ANSWERS

In this homework assignment you will be adding some indexes to the post collection to make the blog fast. Reading clockwise from true north, the wind direction is measured by degrees around the compass up to degrees. Once you have added the indexes to make those pages fast run the following. From all options, only above two uses at least one index from all indexes. What can you infer from the following explain output?

There are entries with lots of comments and tags. To figure out what queries you need to optimize, you can read the blog. After you run the blog, you should see the message:. In this homework assignment you will be adding some indexes to the post collection to make the blog fast. ObjectId “beaabecff” , “Day”:

After you run the blog, you should see the message:. To confirm you are on the right track, here are some queries to run after you process the data with the correct answer shown: 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.

MongodbChamps: Answer For Week 4 for mongodb

When it says “Correct amount of data documents. Do not include the surrounding quotes in providing your answer. With the new schema, this problem is a lot harder and that is sort of the point.

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Mongodbb can also choose to to point mongoProc to any 2. This homework is meant to give you practice using the “package. That will return one document. If everything is working properly, you should be able to start the blog by typing: September 4, March 10, Sonali.

What can you infer from the following explain output? You should not need to touch any other code.

You should see four files in the ‘blog’ directory: From all options, only above two uses at least one index from all indexes. Which of the following queries can utilize at least one index to find all matching documents, or to sort? Here are some URLs that must work when you are done. Your email address will wnswers be published.

We have removed parts of the code that uses the Node.

M101P WEEK 4

You must load this dataset to complete the problem. This dataset holds the same type of data as last week’s grade collection, but it’s modeled differently. To confirm you are on the right track, here are some queries to run after you process the data with the correct answer shown:.

mongodb week 4.4 homework answers

You must load this dataset to complete the problem. 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. To start, please download sysprofile. Mongovb blog has been enhanced so that it can also display the top 10 most recent posts by tag.

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mongodb week 4.4 homework answers

In this problem, you will be using an old weather dataset. One way is to find the lowest homework in code and then update the scores array with the low homework pruned.

Which of the following queries can utilize at least one index to find all matching documents, or to sort? Assuming this document has the highest “Temperature” for the “State” of “Vermont” in our collection, the document should look like this after you run your program:.

Hello from MongoDB!

Note that this requires Node. There are entries with lots of comments and tags. Please provide the value corresponding to the “answer” key without the surrounding quotes from the document returned.

Workspace infoupdated a year ago mongodb-courses-mjs. But you can, for fun. 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