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Let me demonstrate a few simple database queries on MongoDB using their Aggregation Pipeline Framework:
MongoDB Basic Shell Commands (part-6)
Aggregation framework in its simple form is just another way to query data in MongoDB.
MongoDB Basic Shell Commands (part-5)
$elemMatch allows us to have access to the sub-document of an array field.
We have a …
MongoDB Basic Shell Commands (part-4)
Allows us to add an element to an array.
Turns a field into an array field if it was prev…
What is Elasticsearch ?
Elasticsearch is an open-source, highly scalable, full-text search and analytics engine. Its major advantage is that being a N…