MongoDB Aggregation $sort
MongoDB Aggregation $sort 🔃 In MongoDB, the $sort stage in an Aggregation Pipeline is used to order documents based on one or more fields. What does $sort do? Orders documents ascending or descending Works...
Category: MongoDB Tutorial
MongoDB Aggregation $project
MongoDB Aggregation $project 🎯 In MongoDB, the $project stage is used in the Aggregation Pipeline to control the shape of documents—you can include, exclude, rename, or compute fields. What does $project do? Select which...
MongoDB Aggregation $limit
MongoDB Aggregation $limit 🚦 In MongoDB, the $limit stage is used in an Aggregation Pipeline to restrict the number of documents passed to the next stage or returned as output. What does $limit do?...
MongoDB Aggregation $group
MongoDB Aggregation $group 📊 In MongoDB, the $group stage is the heart of the Aggregation Pipeline. It groups documents by a key and performs calculations (aggregations) on each group—similar to GROUP BY in SQL....
MongoDB Aggregation Pipelines
MongoDB Aggregation Pipelines 🔥 In MongoDB, the Aggregation Pipeline is a powerful framework used to process, transform, and analyze data. It works like a data processing pipeline, where documents pass through multiple stages, and...
MongoDB Update Operators
MongoDB Update Operators ✏️ In MongoDB, update operators are special keywords (starting with $) used with updateOne(), updateMany(), and findOneAndUpdate() to modify documents without replacing them entirely. 1️⃣ Field Update Operators $set – Set...
MongoDB Query Operators
MongoDB Query Operators 📘 In MongoDB, query operators are special keywords (starting with $) used to filter, match, and manipulate documents in queries like find(), update(), and delete(). 1️⃣ Comparison Operators Used to compare...
MongoDB mongosh Delete
MongoDB mongosh – Delete Documents 🗑️ In MongoDB, delete operations are used to remove documents from a collection. Be careful ⚠️—deleted data cannot be recovered unless you have backups. 1️⃣ Delete a Single Document...
MongoDB mongosh Update
MongoDB mongosh – Update Documents ✏️ In MongoDB, update operations are used to modify existing documents in a collection. MongoDB provides powerful update methods with update operators. 1️⃣ Update a Single Document (updateOne) Syntax...
MongoDB mongosh Find
MongoDB mongosh – Find Documents 🔍 In MongoDB, the find() method is used to retrieve documents from a collection. It works like SELECT in SQL but uses JSON-style queries. 1️⃣ Find All Documents db.students.find()...