Mongodb tooling in VS Code

https://www.mongodb.com/blog/post/introducing-mongodb-for-vs-code

mongo - cursor not found error

https://itisatechiesworld.wordpress.com/2017/02/23/mongoerroroperationfailure-cursor-not-found/

https://docs.mongodb.com/manual/reference/method/cursor.noCursorTimeout/

Mongo - creating and removing indexes using ruby driver

https://docs.mongodb.com/ruby-driver/master/tutorials/ruby-driver-indexing/#listing-indexes

Mongodb tutorials

https://studio3t.com/knowledge-base/categories/mongodb-tutorials/

Uninstall Mongo old version and Install new version

1) backup data

mkdir mongodb-dump-oct24-2019
cd mongodb-dump-oct24-2019
mongodump

Above will create a folder called 'dump' within 'mongodb-dump-oct24-2019' folder.

2) Uninstall existing version of mongodb
https://medium.com/@rajanmaharjan/uninstall-mongodb-macos-completely-d2a6d6c163f9

3) Install new version
https://stackoverflow.com/questions/57856809/installing-mongodb-with-homebrew

brew tap mongodb/brew  

brew install mongodb-community@4.0

4) brew link --force mongodb-community@4.0

brew services start mongodb-community@4.0

5) Restore data
cd mongodb-dump-oct24-2019
mongorestore

Mongodb related - elemMatch

https://www.tutorialspoint.com/how-to-search-in-array-of-object-in-mongodb

Rails & Mongo - connecting to Mongodb from rails console

client= Mongo::Client.new('mongodb://username:password@serverIP:27017/databaseName?authSource=authSource db')

db = client.database

db.collections

MongoDB with Elixir

https://medium.com/@petecorey/how-to-use-mongodb-with-elixir-ac3f814f8b4a

https://whitfin.io/using-mongodb-with-elixir-phoenix-and-ecto/

Connecting to MongoDB directly from Elixir - https://github.com/ankhers/mongodb

Connecting to MongoDB via Ecto - https://github.com/ankhers/mongodb_ecto

Mongo - exporting and importing a single database

On Source Machine
-------------------------
mongo
> show dbs
> exit

mongodump -d abc_xyz_development

(Above command will create a dump/abc_xyz_development folder and put all the files inside it. This folder will need to be zipped and sent to whoever wants to import the database)

On Target Machine
-------------------------

Drop existing database
mongo

> show dbs

> use abc_xyz_development;
> db.dropDatabase();
> exit

Restore from Dump folder:
Command:
  mongorestore -d
E.g.
  mongorestore -d abc_xyz_development ~/abc_xyz_development

Mongo - Export & Import

https://stackoverflow.com/questions/4880874/how-do-i-create-a-mongodb-dump-of-my-database

Mongodb related

1) Export
mongodump
Above command will export everything (all databases) into a folder called 'dump'

2) Import
mongorestore dump

Mongodb related

https://docs.mongodb.com/ruby-driver/master/tutorials/mongoid-documents/
https://docs.mongodb.com/manual/reference/method/

https://richonrails.com/articles/mongodb-and-rails

Mongodb - getting started

1) mongo
-  to launch mongo shell

2) db.adminCommand( { listDatabases: 1 } )
- to list the databases

3) use abc
- assuming 'abc' is one of the databases listed by command 2

4) db.getCollectionNames()
- to list all the collections
- i think we have to run our queries on Collections just like we would run queries on Tables in a Sql database

5) db.users.findOne()
- assuming 'users' is a collection