Online schema changes with MySQL
New Scheme
Making online schema changes to your database can be tricky, but the right tools can help. We show how to change even the largest tables in an orderly and efficient manner.
From your smartphone to your banking institution, relational databases are everywhere. They store many kinds of data for us – and they store it in a specific, well-defined format. Unlike many of their newer “NoSQL” brethren, relational databases have a fixed schema – they don’t accept arbitrary data. In theory, a smart designer will make entirely correct schema choices, which will then be put into production with no changes or alterations needed, because everything was perfect in the first place.
In practice, though, relational databases often go through many changes. For example, it is often found that mistakes were made in the initial schema. These mistakes need to be corrected and, at times, these corrections do not happen until long after the system is deployed. Other times, business needs change; even if the database was designed correctly in the beginning, it is often impossible to predict how a system will be used in the future.
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
Direct Download
Read full article as PDF:
Price $2.95
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Find SysAdmin Jobs
News
-
MNT Seeks Financial Backing for New Seven-Inch Linux Laptop
MNT Pocket Reform is a tiny laptop that is modular, upgradable, recyclable, reusable, and ships with Debian Linux.
-
Ubuntu Flatpak Remix Adds Flatpak Support Preinstalled
If you're looking for a version of Ubuntu that includes Flatpak support out of the box, there's one clear option.
-
Gnome 44 Release Candidate Now Available
The Gnome 44 release candidate has officially arrived and adds a few changes into the mix.
-
Flathub Vying to Become the Standard Linux App Store
If the Flathub team has any say in the matter, their product will become the default tool for installing Linux apps in 2023.
-
Debian 12 to Ship with KDE Plasma 5.27
The Debian development team has shifted to the latest version of KDE for their testing branch.
-
Planet Computers Launches ARM-based Linux Desktop PCs
The firm that originally released a line of mobile keyboards has taken a different direction and has developed a new line of out-of-the-box mini Linux desktop computers.
-
Ubuntu No Longer Shipping with Flatpak
In a move that probably won’t come as a shock to many, Ubuntu and all of its official spins will no longer ship with Flatpak installed.
-
openSUSE Leap 15.5 Beta Now Available
The final version of the Leap 15 series of openSUSE is available for beta testing and offers only new software versions.
-
Linux Kernel 6.2 Released with New Hardware Support
Find out what's new in the most recent release from Linus Torvalds and the Linux kernel team.
-
Kubuntu Focus Team Releases New Mini Desktop
The team behind Kubuntu Focus has released a new NX GEN 2 mini desktop PC powered by Linux.