I’ve recently been teaching myself MongoDB, comming from a releational database background it’s taking me time to learn how MongoDB works. This article will be the first of many where I will post my notes and how to’s from my MongoDB learning journey.
this article is brief and in this I give an overview of MongoDB and how to create a DB and a Collection.
In MongoDB a record is called a document and is composed of field value pairs (Similar to JSON objects). A Document is then stored in a collection, a collection is analogous to tables in releational databases. The data records in documents are stored as BSON.
To Create a new DB and collection with a document we can do the following after you have connected to the mongo shell.
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use myDB db.myNewCollection.insertOne( { x: 1 }) |
the use myDB tells MongoDB that we wish to use this Database, even if it does not exist yet.
the db.myNewCollection.insertOnce( { x: 1 }) this will create the new DB called myDB and a new collection with a document record called myNewCollection.
to view the collections on the DB issue the command db.getCollectionInfos()
Stay Tuned for my next article, as I continue on this MongoDB journey.
