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
US / Canada
UK / Australia
Direct Download
Read full article as PDF:
Price $2.95
News
-
Microsoft Brings procmon to Linux
The creators of Windows have brought the sysinternals procmon tool to the open source operating system.
-
New KDE Slimbook Available
The makers of the KDE Slimbook have released a Ryzen-4000 powered laptop.
-
PinePhone Now Offers a Convergence Package
The makers of the Linux PinePhone are now offering a model that makes desktop/mobile convergence a reality.
-
Flutter is Coming to Linux
Google and Canonical have joined forces to bring Flutter to the Linux desktop.
-
Purism Launches a Mini PC
The makers of the Librem line of Linux-based laptops have released a mini PC.
-
openSUSE Leap 15.2 Adds AI Machine Learning
With the new release of openSUSE Leap comes some exciting new features, including machine learning.
-
Google’s Nearby Sharing Could Work with Linux
Google’s answer to Apple’s AirDrop feature is rumored to work with the Linux desktop.
-
System76 Launches Ryzen-Powered Laptop
The new System76 Serval WS includes a powerful AMD Ryzen CPU.
-
Linux Mint Drops Snap
Linux Mint has officially dropped their support for Canonical’s snap packages.
-
Lenovo Upping Their Linux Support
Lenovo is now offering full certification and Linux preinstalled hardware.