Difference between revisions of "MongoDB"
From Wasya Wiki
(Created page with "== Install MongoDB on ubuntu == From: https://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv E...") |
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| Line 6: | Line 6: | ||
sudo apt-get update -y | sudo apt-get update -y | ||
sudo apt-get install -y mongodb-org | sudo apt-get install -y mongodb-org | ||
| + | |||
| + | == Count Documents == | ||
| + | <pre> | ||
| + | db.collection.aggregate( | ||
| + | [ | ||
| + | { $group: { _id: null, count: { $sum: 1 } } } | ||
| + | ] | ||
| + | ) | ||
| + | </pre> | ||
Revision as of 19:40, 5 September 2017
Install MongoDB on ubuntu
From: https://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv EA312927 echo "deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.2 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.2.list sudo apt-get update -y sudo apt-get install -y mongodb-org
Count Documents
db.collection.aggregate(
[
{ $group: { _id: null, count: { $sum: 1 } } }
]
)
