Have you ever had to provision a large number of instances from a single backup? The most common use case is having to move to new hardware, but there are other scenarios as well. This kind of procedure can involve multiple backup/restore operations which can easily become a pain to administer. Let’s look at a potential way to make it easier using Percona Xtrabackup. The Percona XtraBackup tool provides a method of performing fast and reliable backups of your MySQL data while the system is running.

Leveraging Named Pipes

As per the Linux manual page, a FIFO special file (a named pipe) is similar to a pipe except that it is accessed as part of the filesystem. It can be opened by multiple processes for reading or writing.

For this …

Using the MySQL ALTER TABLE command, you can easily change an existing columns’ name and datatype. With just a few clicks, you can do the same in the phpMyAdmin visual web interface. For many developers, this interface is the one they lean on most while programming so it can’t hurt to know how to do it yourself should you find yourself programming in this environment…

Self-Promotion

If you enjoy the content written here, by all means, share this blog and your favorite post(s) with others who may benefit from or like it as well. Since coffee is my favorite drink, you can even buy me one if you would like!

Suppose we have a table with these 3 columns:

• id
• title
• grade

Our goal is to rename the title column to paper_title and to also change the datatype …

So this has turned into a small series, explaining how to work with MYSQL from a developers perspective. This post is intended as a directory for the individual articles. It will be amended and re-dated as necessary.

The code for the series is also available in isotopp/mysql-dev-examples on GitHub.

The Tag #mysqldev will reference all articles from this series.

• MySQL Transactions - the physical side. Looking at how MySQL InnoDB handles transactions on the physical media, enabling rollback and commit. Introduces a number of important concepts: The Undo Log, the Redo Log, the Doublewrite Buffer, and the corrosponding in memory …

We are excited to let you know about two upcoming changes to Percona XtraBackup which will align Percona XtraBackup Versions with Percona Server for MySQL.  These changes are to bring Percona XtraBackup release naming line with Percona Server and MySQL and ensure Percona XtraBackup executes complete backups.

The first is a change to the naming structure of releases.  This change is something we believe will help when working with Percona products and is designed to position Percona XtraBackup to be in sync with the current release naming strategy of Percona Server for MySQL and Percona XtraDB Cluster.

The current naming structure of …

This is the updated and english version of some older posts of mine in German. It is likely still incomplete, and will need information added to match current MySQL, but hopefully it is already useful.

Old source articles in German: 1, 2 and 3.

Some vocabulary

Symbol, Font, Encoding and Collation - what do they even mean?

A character set is a collection of symbols that belong together. That is a completely abstract thing, and also almost useless. The only thing you can do with a character set is decide if a specific symbol is legal within a context or not. And, if it is legal, what position the …

Before i talk about “Selective Restore” , it is more important to know below details:-

• What is MySQL Enterprise Backup ?
• Features of MySQL Enterprise Backup.
• Benchmarking “mysqldump” Vs “mysql enterprise backup”
• What is TLR (table level Recovery)
• Limitations of TLR
• Conclusion 

What is MySQL Enterprise Backup ?

It is a multi-platform, high-performance tool, offering rich features like “hot” (online) backup, incremental and differential backup, selective backup and restore, support for direct cloud storage backup, backup encryption and compression, and many other valuable features.

This MEB is bundled with MySQL Commercial Editions.

More info:- …

Rate Puppies in a Rust app with Sharded MySQL Database

Read the full story

Since writing this blog we have released a new version of PlanetScale. Learn more about what we’ve built and give it a try, and be sure to check out our docs. Please note, this blog refers to PlanetScaleDB v1 and is not applicable to our latest product. At PlanetScale, we have built PlanetScaleDB, a fully managed database-as-a-service on top of open source Vitess that enables horizontal scaling of MySQL far beyond what you can do with a single instance. In this blog, we’ll explain how sharding works in Vitess and on PlanetScaleDB. A sharded database is a collection of multiple databases (shards) with identical relational schemas. Vitess allows your application to treat a sharded database as though it is a humongous monolithic database without having to worry about the complexities of sharding. Because of this, you can start with a small database on PlanetScaleDB and grow to massive scale without changing your application logic. In this blog post, …

Rate Puppies in a Rust app with Sharded MySQL Database

If you are thinking about to move your MySQL databases to the Cloud but you are still reticent, you can maybe use the “Oracle Cloud Free Tier” offer to test it.

Oracle Cloud Free Tier offers you 2 Oracle Autonomous Databases and 2 Oracle Cloud Infrastructure Compute VMs as Always Free services and in addition a 30-day Free Trial with US$300 in free credits.
On these VMs instances (provisioned and managed by Oracle Cloud Infrastructure Compute) you can install your MySQL server. Let’s see how…

Oracle Cloud account creation

Connect to the Oracle Cloud page and fill in your credentials:
…