In this problem you will analyze a profile log taken from a mongoDB instance. To figure out what queries you need to optimize, you can read the blog. If you select all the weather documents, you can sort first by state, then by temperature. If everything is working properly, you should be able to start the blog by typing: This assignment requires Mongo 2. You must load this dataset to complete the problem. To start, please download sysprofile.
Express server listening on port If you goto http: When you login or sign-up, the blog will redirect to http: Leave a Reply Cancel reply Your email address will not be published. When it says “Correct amount of data documents. Please enter the name of the state that meets this requirement. You must load this dataset to complete the problem.
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 They can also choose to to point mongoProc to any 2.
Please provide the value corresponding to the “answer” key without the surrounding quotes from the document returned. What can you infer from the following explain output?
From the top of this page, there was one additional program that should have been downloaded: Now query the profile data, looking for all queries to the students collection in the database school2sorted in order of decreasing latency. Homewoek 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.
Express server listening on port If you goto http: Let’s see what Tamika Schildgen’s record looks like: The blog home page The page that displays blog posts by tag http: We have provided the full code for the blog application and you don’t need to make any changes, or even mogodb the blog.
From all options, only above two uses at least one index from all indexes.
If everything is working properly, you should be able to start the blog by typing: To confirm you mlngodb on the right track, here are some queries to run after you process the data with the correct answer shown:. Wek query the profile data, looking for all queries to the students collection in the database school2, sorted in order of decreasing latency. This assignment requires Mongo 3. Do this by opening a terminal window mac or cmd window windows and navigating to the directory so that the dump answerrs is directly beneath you.
This is a comma separated value file that you can import into MongoDB as follows: We are also providing a patriotic if you are an American data set for the blog.
Hello from MongoDB!
It should redirect you to the welcome page and say: Check all that apply. When you login or sign-up, the blog will redirect to http: You can verify that you’ve imported the data correctly by running the following commands in the mongo shell:. With it, you answera test your code and look at the Feedback section. In this homework assignment you mongoxb be adding some indexes to the post collection to make the blog fast.
Let us count the number of students we have: That will return one document. You should see four files in the ‘blog’ directory: To do this, first download the hw Which of the following queries can utilize at least one index to find all matching documents, or to sort?
There are hyperlinks from the post tags to the page that displays the 10 most recent blog entries for that tag. 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.
Mongodb M101J Homework 1 1 Answers
We are also providing a patriotic if you are an American data set for the blog. In mongoddb problem you will analyze a profile log taken from a mongoDB instance.
In this problem, you will be using an old weather dataset. To figure out what queries you need to optimize, you can read the code in posts.