Seen hex error codes like 0x80070070 in the ERRORLOG? Here are the simple steps I use to convert hex Windows error codes into meaningful error messages.
SQL SERVER – Execution Plan Ignores Tabs, Spaces and Comments
Many teams skip comments in stored procedures, fearing bigger execution plans. My demo shows SQL Server ignores tabs, spaces and comments when it builds a plan.
SQL SERVER – Puzzle – Why Such a Complicated Execution Plan for a Single Row, Single Table Query?
A simple puzzle: why does SQL Server show such a complicated execution plan for a single row, single table query on WideWorldImporters? Try to solve it.
Serial Zones in Parallel Plans: Where One Thread Does the Work
A parallel plan can still leave one core busy. See a harmless serial zone, a costly one, and how to read per-thread rows from the plan.
Blind Index: Searching an Encrypted Column Without Decrypting
Encrypted emails cannot be searched, so store a keyed digest beside them. A hands-on demo of how it works, what it leaks and how rotation hurts.





