Posts Tagged: mongodb

HOMEWORK: HOMEWORK 4.2 Suppose you have a collection called tweets whose documents contain information about thecreated_at time of the tweet and the user's followers_count at the time they issued the tweet. What can you infer from the following explain output? > db.tweets.explain("executionStats").find({"user.followers_count":{$gt:1000}}).limit(10).skip(5000).sort( { created_at : 1 } ) { "queryPlanner" : { "plannerVersion" : 1, [...]

HOMEWORK: HOMEWORK 2.1 In this problem, you will be using an old weather dataset. Download weather_data.csv from the Download Handout link. This is a comma separated value file that you can import into MongoDB as follows: mongoimport -type csv -headerline weather_data.csv -d weather -c data You can verify that you've imported the data correctly by [...]