Question
db.covid19.aggregate([ {$group: {_id: null, new_cases: {$sum: $New cases}, new_deaths: {$sum: $New deaths}, new_recovered: {$sum: $New recovered}}}, {$project: {_id: 0}} ]) This query does not yield
db.covid19.aggregate([ {$group: {_id: null, new_cases: {$sum: "$New cases"}, new_deaths: {$sum: "$New deaths"}, new_recovered: {$sum: "$New recovered"}}}, {$project: {_id: 0}} ]) This query does not yield any results. Am I missing something?
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started
Pro Database Migration To Azure Data Modernization For The Enterprise
Authors: Kevin Kline, Denis McDowell, Dustin Dorsey, Matt Gordon
1st Edition
1484282299, 978-1484282298
