MongoDB: Using $dateDiff to find difference between dates (with examples)
Updated: Feb 03, 2024
Overview In recent years, MongoDB has significantly enhanced its capabilities, allowing for more complex operations directly within the database. Amongst such improvements, the Aggregation Framework’s $dateDiff operator stands......
Working with $dateAdd and $dateSubtract in MongoDB (with examples)
Updated: Feb 03, 2024
Introduction In the evolving landscape of database technologies, MongoDB consistently introduces enhanced features to deal with various data types easily, one of which is the date type. Dealing with dates in databases is often vital......
MongoDB: Using $dateFromString to convert string to date
Updated: Feb 03, 2024
Introduction Data manipulation often requires the conversion of strings into date objects. In MongoDB, dates are a fundamental data type which is extensively used for timestamps, logging, and carrying out date arithmetic. The......
MongoDB: Using $dateToString to format date time
Updated: Feb 03, 2024
Introduction MongoDB, the popular non-relational database, is known for its flexible schema and powerful querying capabilities. When working with date and time data, presenting it in a human-readable format becomes essential. In......
MongoDB: How to update a nested field (with examples)
Updated: Feb 03, 2024
Introduction MongoDB is a powerful, flexible NoSQL database that offers a variety of features to work with complex data structures. One common operation is updating nested documents in a MongoDB collection. If you’re not familiar......
MongoDB: How to add auto-incrementing field to a collection
Updated: Feb 03, 2024
Overview When working with MongoDB, a NoSQL database, there comes a time when you might need an auto-incrementing field within your collection. Unlike SQL databases that provide an AUTO_INCREMENT attribute, MongoDB does not have a......
Understanding Transactions in MongoDB (with examples)
Updated: Feb 03, 2024
Introduction Transactions are crucial for maintaining data integrity in applications that require operations involving multiple documents or collections to be atomic. In MongoDB, transactions were introduced in version 4.0, offering a......
Working with Change Streams in MongoDB (with examples)
Updated: Feb 03, 2024
Introduction Change Streams in MongoDB provide a real-time data change tracking mechanism, enabling applications to react to data changes in the database. This powerful feature allows developers to build responsive and robust......
MongoDB createdAt and updatedAt fields: A practical guide (with examples)
Updated: Feb 03, 2024
Introduction Working with dates in a database can be a crucial aspect of an application, especially when you want to keep track of when data is created and modified. MongoDB, a popular NoSQL database, has capabilities that can help in......
MongoDB: Using $elemMatch operator to match elements in an array
Updated: Feb 03, 2024
Introduction When working with MongoDB, one often comes across scenarios where it is necessary to query documents based on the elements within an array. MongoDB provides a powerful operator called $elemMatch which allows us to do......
MongoDB: using $all operator to match arrays (with examples)
Updated: Feb 03, 2024
Overview MongoDB, the popular NoSQL database, offers a wide range of query operators that allow developers to perform complex searches with ease. One useful operator in the MongoDB query language is $all, which belongs to the family of......
Geospatial in MongoDB: A practical guide (with examples)
Updated: Feb 03, 2024
Introduction Geospatial data represents information about physical locations and shapes of earth’s features, along with their relationships. In our digital age, the ability to query and manipulate this data efficiently is......