How to filter a query on specific date format with MongoDB?

To filter a query on specific date format, use $dateToString. Let us create a collection with documents −

> db.demo433.insertOne({"DueDate":new Date("2019-11-23")});
{
   "acknowledged" : true,
   "insertedId" : ObjectId("5e771278bbc41e36cc3cae91")
}
> db.demo433.insertOne({"DueDate":new Date("2020-01-03")});
{
   "acknowledged" : true,
   "insertedId" : ObjectId("5e771290bbc41e36cc3cae92")
}

Display all documents from a collection with the help of find() method −

> db.demo433.find();

This will produce the following output −

{ "_id" : ObjectId("5e771278bbc41e36cc3cae91"), "DueDate" : ISODate("2019-11-23T00:00:00Z") }
{ "_id" : ObjectId("5e771290bbc41e36cc3cae92"), "DueDate" : ISODate("2020-01-03T00:00:00Z") }

Following is the query to filter a query on specific date format in MongoDB −

> db.demo433.aggregate([
... { $addFields: {stringDate: { $dateToString: { format: "%Y-%m-%d", date: "$DueDate" } } } },
... { $match: {"stringDate":"2020-01-03"}},
... { $project:{"stringDate":0}}
... ])

This will produce the following output −

{ "_id" : ObjectId("5e771290bbc41e36cc3cae92"), "DueDate" : ISODate("2020-01-03T00:00:00Z") }

AmitDiwan

Published on 03-Apr-2020 14:16:12

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