mongodb
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This is a fundamental guide to querying in MongoDB! This tutorial covers the essential equality and comparison operators you will use in almost every query.
What you will learn:
$eq (Equals): How to find documents that exactly match a value. We'll also show the shorthand (e.g., { field: "value" }).
$ne (Not Equal): How to find documents that do not match a value.
$gt (Greater Than): Find documents where a value is more than a number (e.g., { age: { $gt: 25 } }).
$gte (Greater Than or Equal To): Find documents where a value is more than or equal to a number.
$lt (Less Than): Find documents where a value is less than a number.
$lte (Less Than or Equal To): Find documents where a value is less than or equal to a number.
How to Combine Operators: We'll show you how to create a range query (e.g., find all products with a price between $10 and $50).
Example (Range Query): db.products.find({ "price": { $gt: 10, $lte: 50 } })
#MongoDB #Database #NoSQL #Programming #HowTo #TechTips #MongoDBTutorial #Query
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2025/11/12
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