Right Join in MySQL 8: A Practical Guide
Introduction Join operations are fundamental in SQL, allowing users to retrieve data from multiple tables and combine it into a unified result. One of the key join types…
Multicolumn Indices in MySQL 8: A Practical Guide
Working with databases efficiently is a critical skill set for any developer who interacts with backend systems. When dealing with SQL databases, understanding indices — particularly, multicolumn indices…
MySQL 8: created_at and updated_at columns – A practical guide
Introduction MySQL, one of the most popular open-source relational databases, provides powerful features to manage and query data efficiently. Tracking when records are created or modified is a…
FROM_UNIXTIME() in MySQL 8: Convert a UNIX timestamp to a date
Understanding UNIX Timestamps A UNIX timestamp consists of the number of seconds that have elapsed since January 1, 1970, at 00:00:00 Coordinated Universal Time (UTC), not including leap…
MySQL 8: Set a fallback value for NULL columns in SELECT statement
Overview In database management, specifically when working with SQL databases like MySQL, dealing with NULL values is a common challenge. NULL represents a missing or inapplicable value in…
MySQL 8: How to concatenate multiple rows into a single string
Introduction In this tutorial, we will delve into the intricacies of concatenating multiple rows into a single string in MySQL 8. This is a common need in the…
MySQL 8: How to Limit Results in Each Group
Introduction Managing databases often involves complex queries, especially when it comes to aggregating and organizing data effectively. MySQL, a widely-used open-source relational database management system, provides several ways…
Working with Self-Referencing and Self-Join in MySQL 8
Introduction In this tutorial, we’ll dive into the concepts of self-referencing and self-join in MySQL 8. These techniques are fundamental in handling recursive data structures where an entity…
MySQL 8: Get the latest row of each group with GROUP BY (3 approaches)
Introduction Retrieving the most recent record in each group is a common task when dealing with databases. With the rise of MySQL 8.0, developers now have more robust…
Transaction, commit, and rollback in MySQL 8: A Practical Guide
Introduction MySQL is a robust and popular database management system employed by developers for a wide range of applications. One of its fundamental features is the ability to…
