Need to find documents that match (or don't match) a specific list of values? This tutorial shows you exactly how to use the $in and $nin operators in MongoDB.

What you will learn:

$in (In Array): How to find documents where a field's value matches any value in a list (array) you provide. This is the perfect way to run multiple "OR" conditions on a single field.

$nin (Not In Array): The exact opposite. How to find all documents where a field's value is not in the list you provide.

Example ($in): Find all users whose status is either "Active" OR "Pending": db.users.find({ status: { $in: ["Active", "Pending"] } })

Example ($nin): Find all products that are not in the "Electronics" or "Clothing" categories: db.products.find({ category: { $nin: ["Electronics", "Clothing"] } })

#MongoDB #Database #NoSQL #Programming #HowTo #TechTips #MongoDBTutorial