Database design and SQL proficiency are foundational skills honed across decades of enterprise software development. Gary works extensively with both PostgreSQL and Microsoft SQL Server, designing schemas that balance normalization with practical query performance.

Complex query optimization is a frequent consulting engagement. This includes analyzing execution plans, restructuring queries for better index utilization, implementing materialized views, and designing partitioning strategies for large datasets. The goal is always measurable performance improvement with clear before-and-after metrics.

Data migration expertise covers moving data between systems, platforms, and schema versions with zero data loss and minimal downtime. Whether migrating from legacy databases to modern platforms or consolidating multiple data sources into a unified schema, the process follows a disciplined approach with validation at every stage.