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How to get items with a specific value from documents using MongoDB shell?
To get items with a specific value, simply use find(). Let us create a collection with documents −
> db.demo563.insertOne({"Name":"Chris","Age":21,"isMarried":true}){
"acknowledged" : true, "insertedId" : ObjectId("5e8f546c54b4472ed3e8e878")
}
> db.demo563.insertOne({"Name":"Bob","Age":23,"isMarried":false}){
"acknowledged" : true, "insertedId" : ObjectId("5e8f547854b4472ed3e8e879")
}
> db.demo563.insertOne({"Name":"Carol","Age":23,"isMarried":true}){
"acknowledged" : true, "insertedId" : ObjectId("5e8f548b54b4472ed3e8e87a")
}
> db.demo563.insertOne({"Name":"Mike","Age":21,"isMarried":true}){
"acknowledged" : true, "insertedId" : ObjectId("5e8f549454b4472ed3e8e87b")
}Display all documents from a collection with the help of find() method −
> db.demo563.find();
This will produce the following output −
{ "_id" : ObjectId("5e8f546c54b4472ed3e8e878"), "Name" : "Chris", "Age" : 21, "isMarried" : true }
{ "_id" : ObjectId("5e8f547854b4472ed3e8e879"), "Name" : "Bob", "Age" : 23, "isMarried" : false }
{ "_id" : ObjectId("5e8f548b54b4472ed3e8e87a"), "Name" : "Carol", "Age" : 23, "isMarried" : true }
{ "_id" : ObjectId("5e8f549454b4472ed3e8e87b"), "Name" : "Mike", "Age" : 21, "isMarried" : true }Following is the query to get items from documents using MongoDB shell
> db.demo563.find({Age:21},{isMarried:true,Name:1,Age:1});This will produce the following output −
{ "_id" : ObjectId("5e8f546c54b4472ed3e8e878"), "Name" : "Chris", "Age" : 21, "isMarried" : true }
{ "_id" : ObjectId("5e8f549454b4472ed3e8e87b"), "Name" : "Mike", "Age" : 21, "isMarried" : true }
Updated on: 14-May-2020
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