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MongoDB query where all array items are less than a specified condition?
Let us first create a collection with documents −
> db.arrayElementsNotGreaterThanDemo.insertOne({"Scores":[89,43,32,45]});
{
"acknowledged" : true,
"insertedId" : ObjectId("5cd9e9f9b50a6c6dd317adb3")
}
> db.arrayElementsNotGreaterThanDemo.insertOne({"Scores":[32,33,34,40]});
{
"acknowledged" : true,
"insertedId" : ObjectId("5cd9ea13b50a6c6dd317adb4")
}
> db.arrayElementsNotGreaterThanDemo.insertOne({"Scores":[45,56,66,69]});
{
"acknowledged" : true,
"insertedId" : ObjectId("5cd9ea25b50a6c6dd317adb5")
}
> db.arrayElementsNotGreaterThanDemo.insertOne({"Scores":[46,66,77,88]});
{
"acknowledged" : true,
"insertedId" : ObjectId("5cd9ea3cb50a6c6dd317adb6")
}Following is the query to display all documents from a collection with the help of find() method −
> db.arrayElementsNotGreaterThanDemo.find().pretty();
This will produce the following output −
{
"_id" : ObjectId("5cd9e9f9b50a6c6dd317adb3"),
"Scores" : [
89,
43,
32,
45
]
}
{
"_id" : ObjectId("5cd9ea13b50a6c6dd317adb4"),
"Scores" : [
32,
33,
34,
40
]
}
{
"_id" : ObjectId("5cd9ea25b50a6c6dd317adb5"),
"Scores" : [
45,
56,
66,
69
]
}
{
"_id" : ObjectId("5cd9ea3cb50a6c6dd317adb6"),
"Scores" : [
46,
66,
77,
88
]
}Following is the query where all array items are less than a specified condition −
> db.arrayElementsNotGreaterThanDemo.find({Scores: {$not: {$gt:45}}});This will produce the following output −
{ "_id" : ObjectId("5cd9ea13b50a6c6dd317adb4"), "Scores" : [ 32, 33, 34, 40 ] }
Updated on: 30-Jul-2019
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