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Min and max values of an array in MongoDB?
To get the min and max values, use $min and $max. Let us create a collection with documents −
> db.demo286.insertOne({"details":[{Value1:70,Value2:50},{Value1:30,Value2:36}]});
{
"acknowledged" : true,
"insertedId" : ObjectId("5e4ac743f49383b52759cbbc")
}Display all documents from a collection with the help of find() method −
> db.demo286.find().pretty();
This will produce the following output −
{
"_id" : ObjectId("5e4ac743f49383b52759cbbc"),
"details" : [
{
"Value1" : 70,
"Value2" : 50
},
{
"Value1" : 30,
"Value2" : 36
}
]
}Here is the query to get min and max values of an array −
> db.demo286.aggregate([ { "$project": { "name": 1, "MinValue1": { "$min": "$details.Value1" }, "MaxValue2": { "$max": "$details.Value2" } }} ])This will produce the following output −
{ "_id" : ObjectId("5e4ac743f49383b52759cbbc"), "MinValue1" : 30, "MaxValue2" : 50 }
Updated on: 31-Mar-2020
1K+ Views
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