Jun 26, 2021
In MongoDB, _id field is always the first field in the documents therefore each document stored in a collection requires a unique _id field that acts as a primary key.
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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: –