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Database Engineering

PostgreSQL, SQL Server, NoSQL design, query optimization, migration strategies, and high-availability patterns.

3 guides

How to Tune SQL Server Performance: Indexes, Query Plans, and Wait Stats

Diagnose and fix SQL Server performance issues. Covers index analysis, execution plan reading, wait statistics, parameter sniffing, and tempdb optimization.

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PostgreSQL Performance Tuning: From Slow to Sub-Second

Optimize PostgreSQL for production workloads. Covers EXPLAIN ANALYZE, indexing strategies, configuration tuning, connection pooling, and vacuum management.

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How to Manage Database Schema Migrations Safely

Deploy database changes without downtime. Covers blue-green migrations, backward compatibility, rollback strategies, and migration testing.

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