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MongoDB query to get a specific number of items
To get a specific number of items, use $slice operator in MongoDB. Let us create a collection with documents −
> db.demo48.insertOne({"Name":["David","Chris","Sam","Mike","Carol"]});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e270491cfb11e5c34d89901")
}Display all documents from a collection with the help of find() method −
> db.demo48.find();
This will produce the following output −
{ "_id" : ObjectId("5e270491cfb11e5c34d89901"), "Name" : [ "David", "Chris", "Sam", "Mike", "Carol" ] }Following is the query to get only 2 items −
> db.demo48.find({},{Name:{$slice: 2}});This will produce the following output −
{ "_id" : ObjectId("5e270491cfb11e5c34d89901"), "Name" : [ "David", "Chris" ] }
Updated on: 03-Apr-2020
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