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$Toupper Aggregation Operator In Mongodb

In this article, we will discuss the $toUpper aggregation operator in MongoDB.

Purpose

The $toUpper operator in MongoDB is used within the aggregation framework to convert a string to uppercase.

Example

Consider the following example.

Picture showing the sample document collection

We are required to convert the firstname to uppercase. So, the query would be: -

db.Employees.aggregate([
    {
        $project: {
            firstname: 1,
            upperFirstname: { $toUpper: "$firstname" }
        }
    }
])

Output

Posted By -	Karan Gupta

Posted On -	Monday, June 3, 2024

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