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Query for multiple parameters in MongoDB?
To query for multiple parameters in MongoDB, you can use the dot(.) notation. Let us first create a collection with documents −
> db.multipleParametersDemo.insertOne(
... {
... "CustomerName" : "Larry",
... "CustomerDetails" : [
... {
... "CustomerCountryName" : "US",
... "CustomerBankName" : "HDFC",
... "CustomerBalance" : 17363,
... }
... ],
... "Purchase" : 1456,
...
... }
... );
{
"acknowledged" : true,
"insertedId" : ObjectId("5cd10f9ce3526dbddbbfb60a")
}Following is the query to display all documents from a collection with the help of find() method −
> db.multipleParametersDemo.find().pretty();
This will produce the following output −
{
"_id" : ObjectId("5cd10f9ce3526dbddbbfb60a"),
"CustomerName" : "Larry",
"CustomerDetails" : [
{
"CustomerCountryName" : "US",
"CustomerBankName" : "HDFC",
"CustomerBalance" : 17363
}
],
"Purchase" : 1456
}Following is how you can query for multiple parameters in MongoDB −
> db.multipleParametersDemo.find({CustomerName: 'Larry', 'CustomerDetails.CustomerCountryName': 'US'}).count();This will produce the following output −
1
Updated on: 30-Jul-2019
1K+ Views
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