The process of evolving database structure over time through versioned, trackable changes.
A schema migration is a controlled change to a database structure - creating tables, adding columns, changing types, adding indexes, or backfilling data. Migrations need care because they can cause downtime, data loss, or degraded performance if applied incorrectly.
For marketing tools, migration safety matters because reporting and lead capture rely on always-on availability.
Browse related definitions in the same glossary category.
Data Enrichment
The process of enhancing existing data with third-party data to make it more useful and insightful.
Data Normalisation
Organising database tables to reduce redundancy and improve data integrity through structured relationships.
Data Warehouse
A centralized repository of integrated data from one or more disparate sources, used for reporting and data analysis.
ETL / ELT
Extract, Transform, Load - processes for moving and transforming data between systems. ELT loads raw data first, then transforms.
Event-Driven Architecture
A design pattern where systems communicate through events, enabling loose coupling and real-time processing.
Multi-Tenant Architecture
A system design where a single instance serves multiple customers (tenants) with data isolation.
Understanding "Schema Migration" is just the first step. Our team at TwoSquares specializes in technical SEO and digital strategy, helping brands turn complex concepts into measurable growth.