Y V Ravi Kumar is an Extraordinary Ability (EB1-A) Einstein Visa recipient, an Oracle Certified Master, an Oracle ACE Director Alum, and is TOGAF certified. He is an IEEE Senior Member with more than 27 years of multinational leadership experience in banking, financial services, and insurance (BFSI) verticals. Ravi Kumar has co-authored six books and has served as technical reviewer on six other books. Ravi Kumar is an Oracle Certified Professional (OCP) and Expert (OCE) across multiple Oracle versions and technologies, and is certified in PostgreSQL, MySQL, and multi-cloud architectures (OCI, AWS, GCP). He has published more than 100 Oracle technology articles and has spoken four times at Oracle Cloud/OpenWorld (OOW) in Las Vegas/San Francisco. He has delivered technical sessions at various Oracle user groups, including IOUG, OCW, NYOUG, and Quest Oracle Community. Ravi Kumar has designed data centers and implemented mission-critical databases for core banking solutions for two major central banks in the world. He also is a Snowflake Squad Member, Snowflake Data Super Hero 2025, and certified in Snowflake Pro.

Velu Natarajan is a seasoned analytics professional with over 18 years of experience delivering scalable, high-performance data solutions. As a leader in the Database Cloud Center of Excellence, he drives cloud transformation and database migration strategies to ensure business continuity. Velu is recognized for his innovative work in Cloud FinOps, earning the 2024 Discover President Award for developing cost-optimization tools that enhanced performance and cross-functional collaboration. He has presented at major industry events like Snowflake Summit 2024, sharing insights on cost and performance optimization. He holds certifications as a FinOps Certified Practitioner, Snowflake Pro, and Architect. Outside of work, Velu enjoys soccer and blockbuster movies.

Parag Bhardwaj is a FinOps specialist with extensive knowledge in cloud financial management, optimization, and governance. As the Principal Cloud Solutions Architect for a major global airline’s Cloud and Engineering platform team, he ensures cost-efficiency and accountability in cloud environments. Parag has led significant cloud financial optimization projects, integrating DevOps tools and infrastructure governance to enhance business value.

Chapter 1: PostgreSQL System Architecture.- Chapter 2: Installation and Database Clusters.- Chapter 3: PostgreSQL Physical Structures.- Chapter 4: Management of Database Cluster/Schemas/Users.- Chapter 5: Backup, Recovery, and Point in Time Recovery.- Chapter 6: Routine Maintenance Tasks.- Chapter 7: Monitoring PostgreSQL.- Chapter 8: Migration from Oracle to PostgreSQL.- Chapter 9: Replication from Oracle to PostgreSQL.