MongoDB Archives - Page 128 of 129

MongoDB Keys and casting between types

By adminPosted on July 13, 2020

Question : This is more of a theoretical question: Let’s say I have a collection of documents, my_collection: { “_id”: […]

By adminPosted on July 11, 2020

Question : The MongoDB docs state that one can use the mongo client console to initialize replica sets by running […]

By adminPosted on July 9, 2020

Question : We have this syntax with SQL server: select name as ‘database’, ‘I_Love_SQL’ as ‘feelings’ from sys.databases which will […]

By adminPosted on July 8, 2020

Question : Is there a best practice for whether a foreign key between tables should link to a natural key […]

By adminPosted on July 8, 2020

Question : I need to transfer MongoDB data from another server with rsync with MongoDB running. Making a dump is […]

By adminPosted on July 7, 2020

Question : I have a collection as follows: { “_id” : ObjectId(“5a6d9a1ee183f06dfd91dbf0”), “date” : “20180126”, “oid” : “000”, “aid” : […]

By adminPosted on July 5, 2020

Question : I found the normal ULimit setting for mongo db is as follows: -f (file size): unlimited -t (cpu […]

By adminPosted on July 4, 2020

Question : I have two nodes and I’d like to deploy mongodb on them. It seems there’re two methods: Deploy […]

By adminPosted on July 4, 2020

Question : When I installed mongodb in ubuntu, user mongodb and group mongodb are created in /etc/passwd and /etc/group. But […]

By adminPosted on July 3, 2020

Question : What are the differences between the daily tasks/duties of a Mongo DBA compared to a RDBMS DBA? For […]