How to Check Field Existence in MongoDB?
To check field existence in MongoDB, we can use the $exists operator. This operator allows us to query documents based on whether a particular field exists or does not exist. We will use the MongoDB $exists Operator with the examples along with the explanation and output defined below:
How to Check Field Existence in MongoDB?
MongoDB is a NoSQL database that offers a variety of operators to enhance the flexibility and precision of queries. One such operator is $exists
, which is used to check the presence of a field in a document.
In this article will learn about the $exists
Operator in MongoDB by covering its syntax and practical applications. We will also learn about how to query data using Atlas Search.
Contact Us