An email from an old college friend landed my mailbox about UPDATE FROM SELECT Statement with Condition:
“Hey Pinal,”
I have two tables. I want to conditionally update data in one table based on another table. How can I do that. I have included sample scripts and an image for further explanation.
Is your SQL Server running slow and you want to speed it up without sharing server credentials? In my Comprehensive Database Performance Health Check, we can work together remotely and resolve your biggest performance troublemakers in less than 4 hours.
Once you learn my business secrets, you will fix the majority of problems in the future.
Have you ever opened any PowerPoint deck when you face SQL Server Performance Tuning emergencies? SQL Server Performance Tuning Practical Workshop is my MOST popular training with no PowerPoint presentations and 100% practical demonstrations.
Essentially I share my business secrets to optimize SQL Server performance.


