Change data capture from snapshot to ongoing replication
Change data capture combines an initial state with subsequent changes. Offsets, source-history retention, duplicate handling, and excluded objects determine continuity.
4 min read
Data migration
Database-first migration: changing storage while retaining the client
Database-first migration replaces the data layer while retaining a client. The changed access path must preserve required queries, updates, and business meaning.
4 min read
Why matching row counts cannot validate a data migration
Matching row counts establish quantity, not identity, meaning, or readiness for new writes. Migration validation checks an explicit transformation contract and accounts for what remains untested.
5 min read