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How to get latest set of data from a MongoDB collection based on the date records?
To get the latest set of data from data records, use sort() and -1. For only a single data i.e. document, use LIMIT(1). Let us create a collection with documents −
> db.demo521.insertOne({"PurchaseDate":new ISODate("2019-01-10"),"ProductName":"Product-1"});{
"acknowledged" : true, "insertedId" : ObjectId("5e89a1acb3fbf26334ef6117")
}
> db.demo521.insertOne({"PurchaseDate":new ISODate("2020-04-05"),"ProductName":"Product-10"});{
"acknowledged" : true, "insertedId" : ObjectId("5e89a1b9b3fbf26334ef6118")
}
> db.demo521.insertOne({"PurchaseDate":new ISODate("2010-05-08"),"ProductName":"Product-4"});{
"acknowledged" : true, "insertedId" : ObjectId("5e89a1c8b3fbf26334ef6119")
}
> db.demo521.insertOne({"PurchaseDate":new ISODate("2020-02-21"),"ProductName":"Product-3"});{
"acknowledged" : true, "insertedId" : ObjectId("5e89a1d7b3fbf26334ef611a")
}Display all documents from a collection with the help of find() method −
> db.demo521.find();
This will produce the following output −
{ "_id" : ObjectId("5e89a1acb3fbf26334ef6117"), "PurchaseDate" : ISODate("2019-01-10T00:00:00Z"), "ProductName" : "Product-1" }
{ "_id" : ObjectId("5e89a1b9b3fbf26334ef6118"), "PurchaseDate" : ISODate("2020-04-05T00:00:00Z"), "ProductName" : "Product-10" }
{ "_id" : ObjectId("5e89a1c8b3fbf26334ef6119"), "PurchaseDate" : ISODate("2010-05-08T00:00:00Z"), "ProductName" : "Product-4" }
{ "_id" : ObjectId("5e89a1d7b3fbf26334ef611a"), "PurchaseDate" : ISODate("2020-02-21T00:00:00Z"), "ProductName" : "Product-3" }Following is the query to get the latest set of data based on the date −
> db.demo521.find().sort({"PurchaseDate": -1}).limit(1);This will produce the following output −
{ "_id" : ObjectId("5e89a1b9b3fbf26334ef6118"), "PurchaseDate" : ISODate("2020-04-05T00:00:00Z"), "ProductName" : "Product-10" }
Updated on: 13-May-2020
2K+ Views
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