Oracle 26ai SQL Tuning
by Pornchai Krongthammachart (Tee) — First edition, 2026.
This page holds the errata and the lab downloads for the English edition.
Errata
Corrections to the printed text, newest first.
Nothing has been reported for this edition so far. If you find something, please tell me — see below. Every confirmed correction gets listed here with the date it was logged.
Report a mistake
A technical book this long is not going to be free of errors. If you find something misprinted, unclear, or that does not behave the way I said it would when you run it, email me at pornchai.krong@gmail.com.
It helps a lot if you include the chapter and page number, what the book says, and what you think it should say. I read every one of these myself.
Lab setup
The book is built to be run, not skimmed. The lab scripts — 13 files, one per chapter — are on their own page.
About the author
Pornchai Krongthammachart has spent more than 20+ years working with Oracle Database as a trainer and consultant — mostly in-house training and going in to fix systems that are already live and already hurting.
The rest of this site is written in Thai. Questions about the book are welcome in English at pornchai.krong@gmail.com.