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Definition. $dateToString. Converts a date object to a string according to a user-specified format. Compatibility. You can use $dateToString for deployments hosted in the following environments: MongoDB Atlas: The fully managed service for MongoDB deployments in the cloud. MongoDB Enterprise: The subscription-based, self-managed version of MongoDB.
Converts a date object to a string according to a user-specified format. The $dateToString expression has the following operator expression syntax: { $dateToString: {. date: <dateExpression>, format: <formatString>, timezone: <tzExpression>, onNull: <expression>. } }
23 gru 2015 · You cannot use the $dateToString operator with projection in the find() method. Instead, use it with the aggregation framework in the $addFields or $project pipeline phase to return documents that have the datetime field converted to string with the desired format, as in the following example:
3 lut 2024 · The $dateToString operator is part of MongoDB’s aggregation framework and is typically used within an $project or an $addFields stage. Its primary role is to convert Date objects or timestamps to strings according to a user-defined format.
5 cze 2021 · The $dateToString aggregation pipeline operator is the most obvious place to start. As its name implies, its sole purpose is to convert a Date to a string (and return the result). Example: db.cats.aggregate( [ { $project: { _id: 0, dateString: { $dateToString: { format: "%Y-%m-%dT%H:%M:%S.%LZ", date: "$born" } } } } ] )
26 sty 2021 · In MongoDB, the $dateToString aggregation pipeline operator converts a given date object to a string. The $dateToString operator accepts either a Date, a Timestamp, or an ObjectId. You can specify a format to use for the result by providing a format specification.
The MongoDB $dateToString operator is used to convert a date field to a string and format the date into a specified string format. The operator can be used in the aggregation pipeline to return formatted date strings in query results.
