SET_BIT returns a value with one bit set or cleared. Compare the default one with explicit zero, and keep scalar calculation separate from updates.
SQL SERVER – Data Warehousing Interview Questions and Answers – Part 3
Data Warehousing Interview Questions and Answers Part 3 explains slowly changing dimensions: SCD1, SCD2, SCD3 and hybrid SCD, and what each one keeps.
SQL SERVER – Data Warehousing Interview Questions and Answers Part 2
Data Warehousing Interview Questions and Answers Part 2: normalization forms, fact and dimension table keys, data mining, view vs materialized view and ER diagrams.
SQL SERVER – Data Warehousing Interview Questions and Answers – Part 1
Part 1 of my Data Warehousing interview questions and answers, starting with the basics: what a data warehouse is and how it supports decision making.
Replacing a Cursor With a Set-Based Query
Replacing a cursor with one set-based update can simplify row processing; this worked example shows correctness checks and fair timing.
XQuery FLWOR: Filter and Rebuild a Small XML Result
XQuery FLWOR can iterate over source items and construct a different XML result. I use it to filter three products and reorder the survivors. The new elements deliberately differ from the source elements.
SQL SERVER – 2005 – Server and Database Level DDL Triggers Examples and Explanation
DDL triggers fire when someone changes the schema. How to write one, what EVENTDATA gives you, and how to get back in if one locks you out.
SQL Server slow? Let's fix it together in about four hours.
In my Comprehensive Database Performance Health Check, you share your screen, I guide you, and we fix your biggest performance troublemakers. No passwords. No remote access.
You keep every script, and the know-how to fix it yourself next time.
Want your whole team to learn it?
My Practical Workshop has no PowerPoint, just live demos. My AI Enablement Workshop shows your team where AI saves hours, and where it quietly costs them.
Over 400 customers have worked with me this way, and not one shared a password. See all consulting options.