Posted On: Jun 28, 2021
In MongoDB, a covered query is a query that can be satisfied entirely using an index and does not have to examine any documents. Covered queries help us in querying data faster by ensuring the index created contains all the fields required by the query and it doesn't require examining any documents apart from the indexed ones.
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MongoDB is a cross-platform document-oriented database program which is open source and free in nature. It can also be..
The important features of MongoDB are listed below: –Aggregation framework– it uses aggregation framework for the..
Here goes a list of the languages which can be used with MongoDB: – C C++ C# Java Node.js Perl PHP Python Ruby Scala..