Database Insights

MySQL's EXPLAIN command reveals exactly how the query optimizer plans to execute your SQL — which indexes it will use, how many rows it expects to examine, and where it may sort or create temporary tables.

Explore TiDB distributed SQL database for HTAP workloads. Learn TiKV/TiFlash architecture, MySQL compatibility, horizontal scaling, and deployment strategies.

Deploy PMM to get deep MySQL and PostgreSQL visibility — query analytics, dashboards, and alerting in one tool

Choose the optimal EC2 instance for your database workload. Compare R, X, I, and Graviton families with real-world benchmarks and cost-performance analysis.

Explore the trade-offs between database normalization and denormalization for optimal performance. Learn when to normalize for data integrity and when to denormalize for query speed.

A production guide to online MySQL schema changes — when to use pt-online-schema-change vs gh-ost vs MySQL 8.0 INSTANT DDL, configuration parameters, the cutover mechanism, and a step-by-step safety playbook.

GTIDs eliminate manual binlog position tracking in MySQL replication. This guide covers enabling GTIDs, CHANGE MASTER TO MASTER_AUTO_POSITION, and failover.

Configure MySQL timeout variables correctly for your workload. Learn wait_timeout, interactive_timeout, lock_wait_timeout, and net_read_timeout best practices.

Choose between ElastiCache Redis and Memcached — data structures, persistence, replication, and cost considerations

Manage SQL schema migrations with Flyway — versioned and repeatable scripts, CI/CD integration, and team workflows

Deep dive into InnoDB storage engine internals. Understand buffer pool, redo log, undo log, change buffer, and adaptive hash index for expert-level MySQL optimization.

A production guide to MySQL slow query log — enabling with long_query_time and log_queries_not_using_indexes, analyzing with pt-query-digest, reading EXPLAIN output, and fixing full table scans and N+1 loops.