MongoDB: The Complete Guide/

...

/

Read Documents: Part 8

Read Documents: Part 8

Learn and practice the sort, limit, and offset operations while reading MongoDB documents.

We'll cover the following...

Sort

The sort method is used to sort documents.

Syntax:

Press + to interact
db.collection.find(<filter-query>, <projection>).sort({
   field: value,
   ...
});

The field value should be 1 to sort the documents in ascending order, and -1 to sort the documents in descending order.

First, let’s insert some documents.

Press + to interact
db.tasks.insertMany([
{
  name: 'Task 1',
  priority: 1
},
{
  name: 'Task 2',
  priority: 2
}
]);

Next, we build a query to sort documents based on the priority.

db.tasks.find().sort({priority: -1});

This query returns the below output.

[
  {
    _id: ObjectId("60fc0026b7b1ef7b709ecf34"),
    name: 'Task 2',
    priority: 2
  },
  {
    _id: ObjectId("60fc0026b7b1ef7b709ecf33"),
    name: 'Task 1',
    priority: 1
  }
]

Sort consistency

We can return the documents in any order if we sort them by a field with duplicate values. This is because MongoDB doesn’t ...