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Using findOneAndUpdate () to update in MongoDB?
The findOneAndUpdate() is used to update a single document based on the filter and sort criteria i.e. −
db.collection.findOneAndUpdate(filter, update, options)
Let us create a collection with documents −
> db.demo328.insertOne({Name:"Chris",Marks:67});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e516b19f8647eb59e56207a")
}
> db.demo328.insertOne({Name:"David",Marks:78});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e516b24f8647eb59e56207b")
}
> db.demo328.insertOne({Name:"Bob",Marks:97});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e516b2bf8647eb59e56207c")
}Display all documents from a collection with the help of find() method −
> db.demo328.find();
This will produce the following output −
{ "_id" : ObjectId("5e516b19f8647eb59e56207a"), "Name" : "Chris", "Marks" : 67 }
{ "_id" : ObjectId("5e516b24f8647eb59e56207b"), "Name" : "David", "Marks" : 78 }
{ "_id" : ObjectId("5e516b2bf8647eb59e56207c"), "Name" : "Bob", "Marks" : 97 }Following is the query to update with findOneAndUpdate(). Here, we are incrementing a specific document’s field Marks −
> db.demo328.findOneAndUpdate({Name:"David"},{ $inc: { "Marks" : 10} });
{
"_id" : ObjectId("5e516b24f8647eb59e56207b"),
"Name" : "David",
"Marks" : 78
}Display all documents from a collection with the help of find() method −
> db.demo328.find();
This will produce the following output −
{ "_id" : ObjectId("5e516b19f8647eb59e56207a"), "Name" : "Chris", "Marks" : 67 }
{ "_id" : ObjectId("5e516b24f8647eb59e56207b"), "Name" : "David", "Marks" : 88 }
{ "_id" : ObjectId("5e516b2bf8647eb59e56207c"), "Name" : "Bob", "Marks" : 97 }
Updated on: 02-Apr-2020
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