For this, use $all in MongoDB. The $all operator in MongoDB selects the documents where the value of a field is an array that contains all the specified elements.
Let us first create a collection with documents −
> db.demo370.insertOne( ... { ... "Name" : "Chris", ... "details" : [ ... { ... "Subject" : "MySQL", ... "CountryName" : "US" ... }, ... { ... "Subject" : "MongoDB", ... "CountryName" : "UK" ... } ... ] ... } ... ); { "acknowledged" : true, "insertedId" : ObjectId("5e57e9892ae06a1609a00af0") } > db.demo370.insertOne( ... { ... "Name" : "David", ... "details" : [ ... { "Subject" : "Java", ... "CountryName" : "AUS" ... }, ... { ... "Subject" : "Spring", ... "CountryName" : "UK" ... } ... ] ... } ... ); { "acknowledged" : true, "insertedId" : ObjectId("5e57e9972ae06a1609a00af1") }
Display all documents from a collection with the help of find() method −
> db.demo370.find();
This will produce the following output −
{ "_id" : ObjectId("5e57e9892ae06a1609a00af0"), "Name" : "Chris", "details" : [ { "Subject" : "MySQL", "CountryName" : "US" }, { "Subject" : "MongoDB", "CountryName" : "UK" } ] } { "_id" : ObjectId("5e57e9972ae06a1609a00af1"), "Name" : "David", "details" : [ { "Subject" : "Java", "CountryName" : "AUS" }, { "Subject" : "Spring", "CountryName" : "UK" } ] }
Following is the query for documents matching array, irrespective of elements order −
> db.demo370.find({ ... details: {$all: [ ... {Subject:"MySQL","CountryName" : "US"}, ... {Subject:"MongoDB", "CountryName" : "UK"} ... ]}})
This will produce the following output −
{ "_id" : ObjectId("5e57e9892ae06a1609a00af0"), "Name" : "Chris", "details" : [ { "Subject" : "MySQL", "CountryName" : "US" }, { "Subject" : "MongoDB", "CountryName" : "UK" } ] }