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What is the master or primary key in mongodb?

Question Posted / pooja rastogi


What is the master or primary key in mongodb?..

Answer / Vijay Pratap Singh

In MongoDB, there is no strict concept of a master or primary key like in traditional relational databases. Instead, each collection can have one document that serves as the _id field, which uniquely identifies each document within the collection. The _id field can be automatically generated by MongoDB, or it can be manually provided by the user.

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