Easiest way to sort an array in MongoDB

The easiest way to sort an array in MongoDB, use $sort. Let us create a collection with documents −

> db.demo242.insertOne(
...
...   {"details2":
...      [
...         {"ShipingDate":new ISODate("2019-10-11"),"Price":1400},
...         {"ShipingDate":new ISODate("2019-10-01"),"Price":1600 }
...      ]
...   }
...
...);
{
   "acknowledged" : true,
   "insertedId" : ObjectId("5e4429229af932883c61ea44")
}

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

> db.demo242.find();

This will produce the following output −

{
   "_id" : ObjectId("5e4429229af932883c61ea44"), "details2" : [
      { "ShipingDate" : ISODate("2019-10-11T00:00:00Z"), "Price" : 1400 },
      { "ShipingDate" : ISODate("2019-10-01T00:00:00Z"), "Price" : 1600 }
   ] 
}

Following is the query to sort an array in MongoDB −

> db.demo242.aggregate([ {$unwind: "$details2"}, {$sort: {"details2.ShipingDate":1}}, {$group: {_id:"$_id", details2: {$push:"$details2.ShipingDate"}}} ]);

This will produce the following output −

{ "_id" : ObjectId("5e4429229af932883c61ea44"), "details2" : [ ISODate("2019-10-01T00:00:00Z"), ISODate("2019-10-11T00:00:00Z") ] }

AmitDiwan

Published on 30-Mar-2020 13:40:14

• Related Questions & Answers
• The easiest way to insert date records in MySQL?
• The easiest way to concatenate two arrays in PHP?
• What is the easiest way to lose weight without exercise?
• MongoDB query to sort nested array?
• What is the easiest way to store date in MySQL database?
• What is the easiest way to reverse a String in Java?
• Easiest way to get number of rows in a MySQL table?
• How to sort inner array in MongoDB?
• What is the easiest way to convert int to string in C++
• Best way to sum array size fields in MongoDB?
• What is the easiest way to transfer files from phone to PC?
• Sort MongoDB Collection by Array value?
• Sort an Array in C++
• Easiest way to copy values of one column to a new table in MySQL?
• Using merge sort to recursive sort an array JavaScript