Contact Us

Few days ago I have noticed that there will be a change (again) in certification paths for next generation of SQL servers. So I would like to recommend some thoughts about this from Microsoft Certified Masters (MCM) of Brent Ozar PLF Company.

More tips and tricks

The Symmetry of Performance: Solving CPU Wait Spikes by Disabling Soft-NUMA
by Michal Kovaľ on 17/02/2026

In high-performance SQL Server environments, how you "slice" your CPU resources is just as important as how many cores you have. We recently tackled a case where a customer was plagued by high SOS_SCHEDULER_YIELD and CXPACKET waits.

Read more
LATCH_EX Waits
by Michal Kovaľ on 27/04/2022

Recently we had a request to optimize LATCH_EX waits on one of the production servers for our customer. Today I would like to share with you our apporach and how we handled the situation.

Read more
Clustered Columnstore Index in an OLTP Database? Hell Yeah.
by Mikuláš Mráz on 30/07/2026

If you haven't been living under a rock for the last 10 years (14 if you count the read-only days), you've probably heard about SQL Server's columnstore engine.

Read more