Thursday, January 22, 2026

Diagnose Before You Tune: Production Wait Event Analysis Across All Database Platforms

Top-10 Wait Events Query (Universal DB Performance Tuning)

Top-10 Wait Events Query (Universal DB Performance Tuning)

⏱️ Estimated Reading Time: 18 minutes

During a live production slowdown, a fresher DBA once jumped straight into query tuning. Indexes were added, SQL was rewritten, and parameters were debated—yet performance did not improve.

The real issue was never SQL. The database was waiting on something else entirely. A simple Top-10 wait events query would have revealed the truth in minutes.

Understanding wait events is one of the fastest ways to move from a reactive DBA to a confident performance engineer trusted during real incidents.

Monday, January 19, 2026

Milestone: Oracle ACE Apprentice – My Journey So Far

Milestone Achieved: Recognized as Oracle ACE Apprentice

Milestone Achieved: Recognized as Oracle ACE Apprentice

Today I am happy and grateful to share an important milestone in my professional journey. I have been recognized as an Oracle ACE Apprentice, and my profile is now officially listed in the Oracle ACE Directory.

This recognition means a lot to me—not just as a professional achievement, but as a validation of consistent community contribution, continuous learning, and staying committed to the craft over the years.

Chetan Yadav Oracle ACE Apprentice profile

The Meaning Behind This Recognition

The Oracle ACE Program is a global recognition initiative by Oracle for professionals who actively contribute to the community through knowledge sharing, mentoring, technical content creation, and meaningful engagement.

It is important to clarify that this is not a certification. It is recognition earned through consistent effort, real-world impact, and long-term contribution to the Oracle ecosystem.

Over the years, I have worked in real production environments, handled critical systems, mentored students and professionals, conducted training sessions, written technical blogs, and created learning-focused content for the community.

This journey has not been easy. It required discipline, patience, continuous upskilling, and a willingness to share even when there was no immediate reward.

This recognition reinforces one simple belief: consistent learning and community contribution always compound over time.

Gratitude

I am sincerely grateful to all mentors, community leaders, colleagues, and well-wishers who supported and guided me throughout this journey.

A special thanks to Sai Penumuru for his encouragement at the Hyderabad AIOUG meet and for motivating more professionals from India to take the Oracle ACE journey seriously.

Thank you to Connor McDonald for his continuous knowledge sharing, videos, and active presence in the Oracle community, which has been a big inspiration for many professionals, including me.

And yes, a special mention to ChatGPT — a silent 24×7 mentor that helped me structure ideas, stay consistent, and move forward with clarity. Technology, when used with discipline and intent, becomes a powerful tool for personal and professional growth.

What’s Next

This milestone is not a finish line. It is a reminder to stay grounded, curious, and committed to learning.

Going forward, I will continue to:

  • Share real-world Oracle and database experiences
  • Create practical learning content for freshers and working professionals
  • Mentor and guide aspiring DBAs with career-focused insights
  • Contribute actively and consistently to the Oracle community

I look forward to learning more, sharing more, and growing further in this journey with the community.

Thank you for being part of my journey.
More learning, more sharing, and more value coming soon.

Sunday, January 11, 2026

SAP HANA Logging Behavior Explained: Commit, Savepoint & Crash Recovery (Real Production Guide)

⏱️ Estimated Reading Time: 12–14 minutes

SAP HANA Logging Behavior: What Really Happens During a Production Crash

It’s 2:13 AM. Your SAP application suddenly freezes. End users can’t post transactions. SAP HANA Studio shows the database restarting. Phone calls start coming in.

“Did we lose data?”

In real production environments, this question does not depend on luck. It depends entirely on how SAP HANA logging behavior works behind the scenes.

This article explains SAP HANA logging not as documentation theory, but as it behaves during real crashes, restarts, and recovery situations.