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Update object in array with a specific key in MongoDB
Let us first create a collection with documents −
>db.demo419.insertOne({"ProductInformation":[{"ProductName":"Product-1","ProductPrice":500},{"ProductName":"Product-2","ProductPrice":600}]});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e724762b912067e57771ae8")
}Display all documents from a collection with the help of find() method −
> db.demo419.find();
This will produce the following output −
{ "_id" : ObjectId("5e724762b912067e57771ae8"), "ProductInformation" : [ { "ProductName" : "Product-1", "ProductPrice" : 500 }, { "ProductName" : "Product-2", "ProductPrice" : 600 } ] }Following is the query to update object in array with a specific key −
> db.demo419.update({'ProductInformation.ProductName' : "Product-1" }, { $set : { 'ProductInformation.$.ProductPrice' : 1250}});
WriteResult({ "nMatched" : 1, "nUpserted" : 0, "nModified" : 1 }Display all documents from a collection with the help of find() method −
> db.demo419.find();
This will produce the following output −
{ "_id" : ObjectId("5e724762b912067e57771ae8"), "ProductInformation" : [ { "ProductName" : "Product-1", "ProductPrice" : 1250 }, { "ProductName" : "Product-2", "ProductPrice" : 600 } ]
Updated on: 03-Apr-2020
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