Katesql is a useful plugin facilitating the connection to databases directly from Kate’s interface. It also adds SQL query support and a table output.

Unfortunately, the current version of Kate, 24.02.0 under KDE Plasma 6.0.1 has not even this module listed.

After searching the file list of package in the official Arch Linux website:

It is not even there !!

I suspect it got deprecated, as this commit set Qt 6.5 as the deprecation level.

https://github.com/KDE/kate/commit/48fed346fb84f00d2638b129bbd2208f1ac8f4b8#diff-107a026cbb4bb473c52e6b73167aa0957d0eb62a55ec40fe471ff77be57a543f

https://kate-editor.org/2010/07/29/katesql-a-new-plugin-for-kate