Oracle RAC and Data Guard in the Real World: Architecture, Pain, Trade-offs, and Hard Lessons
1. Introduction — The Lie of “High Availability” If you’ve ever sat in a meeting…
Oracle
Career
A Maioria dos Profissionais de TI Vai Ficar Para Trás: A Verdade Crua Sobre Carreira em Tecnologia Que Ninguém Quer Admitir
A Mentira Confortável Sobre Carreira em TI Existe uma narrativa extremamente popular — e perigosamente…
Career
Data Engineer, Data Scientist, Data Analyst or DBA: Which Career Should You Choose?
Choosing between becoming a Data Engineer, Data Scientist, Data Analyst, or DBA depends on several…
Devs
MySQL
Oracle
Postgres
SQL Server
30 SQL Mistakes I Still See Developers Make (And the Production Nightmares They Caused Me) — After 25 Years Across SQL Server, Oracle, PostgreSQL, and MySQL
I’ve spent 25 years living inside databases. Not just reading docs — I mean: being…
Oracle
Postgres
Why PostgreSQL and Oracle Look So Similar: The Hidden History Behind SQL Databases
One Question I Often Hear From Database Professionals Over the years working with different database…
SQL Server
The Hidden SQL Server Command That Lets You Simulate Hardware: Mastering DBCC OPTIMIZER_WHATIF
Introduction One of the most fascinating — and often overlooked — capabilities inside SQL Server…
Career
Devs
Working in IT in the United States: The Real Game, The Real Barriers, and How to Compete at the Highest Level
Let me start with something very clear: The United States is not just another job…
Career
The Evolution of the DBA: From Database Operator to Global Strategic Architect
Let me say something that many people still don’t understand: The DBA is not disappearing.…