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MongoDB - Check the existence of the fields in the specified collection

Last Updated: 22 November 2021

In MongoDB, we can check the existence of the field in the specified collection using the $exists operator. When the value of $exists operator is set to true, then this op...read more

MongoDB-operators

MongoDB - Regex

Last Updated: 15 June 2023

MongoDB provides the functionality to search a pattern in a string during a query by writing a regular expression. A regular expression is a generalized way to match patte...read more

MongoDB-operators

Adding and Querying the data in MongoDB

Last Updated: 07 July 2022

Adding Data in MongoDB: MongoDB stores document in BSON, a binary form of JSON (JavaScript Object Notation). The documents are store in collection.To insert documents in M ...read more

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MongoDB-operators

Similar Topics

Web Technologies

32.9k+ articles

2.9k+ articles

350+ articles

130+ articles

30+ articles

MongoDB $arrayElemAt Operator

Last Updated: 09 December 2021

MongoDB provides different types of array expression operators that are used in the aggregation pipeline stages and $arrayElemAt operator is one of them. This operator is ...read more

MongoDB-operators

MongoDB $concatArrays Operator

Last Updated: 07 December 2021

MongoDB provides different types of array expression operators that are used in the aggregation pipeline stages and $concatArrays operator is one of them. This operator is...read more

MongoDB-operators

MongoDB $concat Operator

Last Updated: 01 August 2020

MongoDB provides different types of string expression operators that are used in the aggregation pipeline stages $concat operator is one of them. This operator is used to ...read more

MongoDB-operators

MongoDB $subtract Operator

Last Updated: 18 October 2021

MongoDB provides different types of arithmetic expression operators that are used in the aggregation pipeline stages and an $subtract operator is one of them. This operato...read more

MongoDB-operators

MongoDB - $addToSet Operator

Last Updated: 01 June 2020

MongoDB provides different types of array update operators to update the values of the array fields in the documents and $addToSet operator is one of them. This operator i...read more

MongoDB-operators

MongoDB - SetOnInsert Operator ($setOnInsert)

Last Updated: 10 May 2020

MongoDB provides different types of field update operators to update the values of the fields of the documents and $setOnInsert operator is one of them. This operator is u...read more

MongoDB-operators

MongoDB - Current Date Operator ($currentDate)

Last Updated: 10 May 2020

MongoDB provides different types of field update operators to update the values of the fields of the documents and $currentDate operator is one of them. This operator is u...read more

MongoDB-operators

MongoDB - Rename Operator ($rename)

Last Updated: 20 June 2022

MongoDB provides different types of field update operators to update the values of the fields of the documents and $rename operator is one of them. This operator is used t...read more

MongoDB-operators

MongoDB - Logical Query Operators

Last Updated: 10 May 2020

MongoDB supports logical query operators. These operators are used for filtering the data and getting precise results based on the given conditions. The following table co...read more

MongoDB-operators

MongoDB - Comparison Query Operators

Last Updated: 10 May 2020

MongoDB uses various comparison query operators to compare the values of the documents. The following table contains the comparison query operators: OperatorsDescription$e...read more

MongoDB-operators

MongoDB - $push Operator

Last Updated: 10 May 2020

MongoDB provides different types of array update operators to update the values of the array fields in the documents and $push operator is one of them. This operator is u...read more

MongoDB-operators

MongoDB - $pull Operator

Last Updated: 10 May 2020

MongoDB provides different types of array update operators to update the values of the array fields in the documents and $pull operator is one of them. This operator is us...read more

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