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Indexes in MongoDB improve the speed of queries by allowing the database to find documents more efficiently. Without indexes, MongoDB must scan the entire collection to find matching documents, which can be slow for large datasets. 1. Creating an Index MongoDB allows you to create indexes on fields to optimize

Pattern matching in MongoDB is commonly used to search for specific text within documents. MongoDB provides different ways to perform pattern matching using regular expressions (RegEx) and the $regex operator. 1. Using $regex for Pattern Matching The $regex operator allows searching for patterns in string fields. Example: Find Names Starting

MongoDB and Relational Database Management Systems (RDBMS) are two different types of databases used for storing and managing data. Understanding their differences can help in choosing the right one for a project. Let’s break it down in simple terms. 1. What is MongoDB? MongoDB is a NoSQL database, meaning

MongoDB provides a powerful way to process and analyze data using the Aggregation Pipeline. In this article, we will learn how to use the aggregation pipeline and also how to import JSON data into a MongoDB database named hck-db. Importing JSON Data into MongoDB Before working with aggregation, we need