skill-dba

Use when working with relational databases (MySQL, PostgreSQL, SQL Server, Oracle, SQLite): auditing SQL/schemas, designing or normalizing schemas, optimizing slow queries and SARGability, data integrity (constraints/triggers), zero-downtime migrations and schema refactors, or routine DB maintenance and CLI ops. Triggers on 'audita SQL', 'optimizar query', 'migración de esquema', 'diseñar tabla', 'índice', 'slow query'.