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$gt (Comparison Query)

The $gt operator is used to select documents where the value of a field is greater than a specified value. The $gt operator queries numerical and date values to filter records that exceed a specified threshold.

Syntax

{ "field": { "$gt": value } }

Parameters

Parameter Description
field The field in the document you want to compare
value The value that the field should be greater than

Examples

Consider this sample document from the stores collection in the StoreData database.

{
    "_id": "0fcc0bf0-ed18-4ab8-b558-9848e18058f4",
    "name": "First Up Consultants | Beverage Shop - Satterfieldmouth",
    "location": {
        "lat": -89.2384,
        "lon": -46.4012
    },
    "staff": {
        "totalStaff": {
            "fullTime": 8,
            "partTime": 20
        }
    },
    "sales": {
        "totalSales": 75670,
        "salesByCategory": [
            {
                "categoryName": "Wine Accessories",
                "totalSales": 34440
            },
            {
                "categoryName": "Bitters",
                "totalSales": 39496
            },
            {
                "categoryName": "Rum",
                "totalSales": 1734
            }
        ]
    },
    "promotionEvents": [
        {
            "eventName": "Unbeatable Bargain Bash",
            "promotionalDates": {
                "startDate": {
                    "Year": 2024,
                    "Month": 6,
                    "Day": 23
                },
                "endDate": {
                    "Year": 2024,
                    "Month": 7,
                    "Day": 2
                }
            },
            "discounts": [
                {
                    "categoryName": "Whiskey",
                    "discountPercentage": 7
                },
                {
                    "categoryName": "Bitters",
                    "discountPercentage": 15
                },
                {
                    "categoryName": "Brandy",
                    "discountPercentage": 8
                },
                {
                    "categoryName": "Sports Drinks",
                    "discountPercentage": 22
                },
                {
                    "categoryName": "Vodka",
                    "discountPercentage": 19
                }
            ]
        },
        {
            "eventName": "Steal of a Deal Days",
            "promotionalDates": {
                "startDate": {
                    "Year": 2024,
                    "Month": 9,
                    "Day": 21
                },
                "endDate": {
                    "Year": 2024,
                    "Month": 9,
                    "Day": 29
                }
            },
            "discounts": [
                {
                    "categoryName": "Organic Wine",
                    "discountPercentage": 19
                },
                {
                    "categoryName": "White Wine",
                    "discountPercentage": 20
                },
                {
                    "categoryName": "Sparkling Wine",
                    "discountPercentage": 19
                },
                {
                    "categoryName": "Whiskey",
                    "discountPercentage": 17
                },
                {
                    "categoryName": "Vodka",
                    "discountPercentage": 23
                }
            ]
        }
    ]
}

Example 1: Retrieve all stores where the total sales exceed $35,000

db.stores.find({ "sales.totalSales": { "$gt": 35000 } }, {"name": 1, "sales.totalSales": 1}, {"limit": 1})

This returns the following results:

{
    "_id": "2cf3f885-9962-4b67-a172-aa9039e9ae2f",
    "name": "First Up Consultants | Bed and Bath Center - South Amir",
    "sales": { "totalSales": 37701 }
}

Example 2: Find stores with more than 12 full-time staff

db.stores.find({ "staff.totalStaff.fullTime": { "$gt": 12 } }, {"name": 1, "staff.totalStaff": 1}, {"limit": 1})

This returns the following results:

{
    "_id": "2cf3f885-9962-4b67-a172-aa9039e9ae2f",
    "name": "First Up Consultants | Bed and Bath Center - South Amir",
    "staff": { "totalStaff": { "fullTime": 18, "partTime": 17 } }
}

Example 3: Find promotion events with a discount percentage greater than 10% for Art & Craft Kits

db.stores.find({ "promotionEvents.discounts": { "$elemMatch": { "categoryName": "Art & Craft Kits", "discountPercentage": { "$gt": 10 } } } }, {"name": 1, }, {"limit": 1})

This returns the following results:

{
    "_id": "64941495-5778-4e6a-9eb1-6d7f1fddae17",
    "name": "Trey Research | Toy Haven - North Loren"
}

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