Rendiment

PostgreSQL internals explained for MySQL DBAs. MVCC, heap vs clustered index, VACUUM, WAL, and replication, all mapped to their InnoDB equivalents.

Meet the Claude Code Engineer: a new role where QA, product thinking, and AI coordination matter more than writing code. How agentic tools reshape teams.

Run dbsafe against Aurora MySQL and RDS with TLS. Learn how Aurora's shared-storage architecture complicates gh-ost and why dbsafe auto-detects cloud topology.

What is a database actually supposed to do? A framework of three core promises that applies whether you're a DBA, developer, or ops engineer.

MySQL foreign key constraints extend metadata locks to related tables and eliminate gh-ost for DDL. dbsafe surfaces the full FK impact before you alter.

MySQL InnoDB's ON DELETE CASCADE bypasses the binlog, audit plugins, and triggers - the three blind spots explained plus a trigger-based workaround for 8.x.

Learn how dbsafe auto-generates rollback SQL for every schema change - with data loss warnings for DROP COLUMN and INSTANT drop notes for MySQL 8.0.29+.

Understand MySQL COPY algorithm DDL that rebuilds entire tables. Learn why MODIFY COLUMN and charset conversions are dangerous, and how dbsafe mitigates risk.

Master MySQL 8.0 INSTANT DDL for zero-downtime schema changes. Learn ADD COLUMN, DROP COLUMN without table rebuilds, and use dbsafe to verify before production.

Analyze MySQL ALTER TABLE statements before running them. Know the algorithm, locks, and risks without testing on production. Read-only DDL safety tool.