In the article, we are going to explore the importance of the database deployment in MySQL and how automation can enhance this process. In addition, we'll examine how to set up schema comparison and synchronization using the command line with the help of dbForge Studio for MySQL.
The post How to Configure MySQL Deployment Automation: A Practical Guide appeared first on Devart Blog.
MySQL 8 brought a significant architectural transformation by replacing the traditional MyISAM-based system tables with the Transaction Data Dictionary (TDD), a more efficient and reliable approach. This upgrade has vastly improved the management and storage of metadata, resulting in better reliability and scalability for various database objects. In this blog post, we will explore the intricacies of MySQL 8’s Transaction Data Dictionary, its advantages, and its real-life application using practical examples.
At the core of MySQL 8’s InnoDB storage engine, the Transaction Data Dictionary (TDD) plays a fundamental role in storing crucial metadata concerning database objects such as tables, indexes, constraints, triggers, and more. This innovative architecture replaces the outdated MyISAM-based system tables, effectively making the handling of data dictionary information transactional and compliant with the ACID principles.
The …
[Read more]Like always, there is so much great content online in any niche. I am trying to share all the good I can find in the MySQL, PHP, and LAMP stack landscapes. Thank you for reading OpenLampTech each week!
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…[Read more]The clone plugin was introduced in MySQL 8.0.17 and offers a convenient method for cloning data from either a local or remote MySQL server instance. This cloning process creates a physical snapshot of the data stored in InnoDB, including schemas, tables, tablespaces, and data dictionary metadata. The clone plugin allows for easy provisioning of MySQL servers by generating a fully functional data directory. In this blog post, we will explore the steps to configure a new MySQL replica using the clone plugin.
Installation of the Clone Plugin
To load the clone plugin during server startup, you can utilize the –plugin-load-add option and specify the library file containing the plugin. Ensure that you add this option each time the server starts when using this plugin-loading method. To make this configuration change, add the following lines to your my.cnf file, adjusting the plugin library file name extension according to your …
[Read more]As businesses grow and develop, the requirements that they have for their data platform grow along with it. As such, one of the more common questions I get from my clients is whether or not their system will be able to endure an anticipated load increase. Or worse yet, sometimes I get questions about regaining normal operations after a traffic increase caused performance destabilization.
As the subject of this blog post suggests, this all comes down to proper capacity planning. Unfortunately, this topic is more of an art than a science, given that there is really no foolproof algorithm or approach that can tell you exactly where you might hit a bottleneck with server performance. But we can discuss common bottlenecks, how to assess them, and have a better understanding as to why proactive monitoring is so important when it comes to responding to traffic growth.
Hardware considerations
The first thing we have to consider …
[Read more]In InnoDB, the undo log and the redo log are two indispensable components that play a vital role in maintaining data integrity and ensuring transactional consistency. Both logs are crucial in the ACID (Atomicity, Consistency, Isolation, Durability) properties of database systems. Additionally, they are essential for the Multi-Version Concurrency Control (MVCC) mechanism. In this blog post, we will delve into the differences between the InnoDB undo log and redo log, exploring their significance and providing code examples to illustrate their usage.
InnoDB Undo Log
The undo log, also known as the rollback segment, is a crucial part of the InnoDB storage engine. Its primary purpose is to support transactional consistency and provide the ability to …
[Read more]This blog was originally published in July 2017 and was updated in August 2023.
It’s a pretty common question around here, so let’s see what we can do about that.
So, What is MySQL Partitioning?
Partitioning is a way in which a database (MySQL in this case) splits its actual data down into separate tables but still gets treated as a single table by the SQL layer.
When partitioning in MySQL, it’s a good idea to find a natural partition key. You want to ensure that table lookups go to the correct partition or group of partitions. This means that all SELECT, UPDATE, and DELETE should include that column in the WHERE clause. Otherwise, the storage engine does a scatter-gather and queries ALL partitions in a UNION that is not concurrent.
Generally, you must add the partition key into the primary key along …
[Read more]As was already announced by the Oracle ACE team on July 24, 2023, it is our great pleasure to introduce MySQL ACEs to the MySQL community for the period 2023-2024. Our new MySQL ACEs for this year are: Congratulations to all Oracle ACEs for MySQL !
Announcing the 2023-2024 Oracle MySQL ACE Program Members
In this article, I want to discuss a couple of pretty new features in MySQL 8.0 — and an older one. Maybe these are minor features you are not aware of, and maybe not so relevant, to be honest. But it is worth providing a quick overview, showing how they work, and how they could be useful in some cases.
All refer to the invisibility of something:
Let’s take a look.
Invisible columns
The invisible columns feature has been deployed since version 8.0.23. What is an invisible column? It’s basically a regular column of a table with its own name and data type. It is treated and updated as any other regular column, with the only difference being that it is invisible to the application. In other words, it can be accessed only in the case it is explicitly addressed in your SELECT; otherwise, it is …
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