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change data capture

AI, ML & GenAI interview questions tagged change data capture, across every topic.

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Concepts behind "change data capture"

The curriculum that explains the ideas these questions test.

Core
🗄️ Data & SQL EngineeringSign in
Change Data CaptureChange Data Capture (CDC) streams the inserts, updates, and deletes from a source database so downstream systems stay in sync without costly full reloads. It drives incremental pipelines, real-time analytics, and keeping a search index or feature store current. The main concerns are handling updates and deletes (not just inserts), ordering, and applying the change stream idempotently. AI, ML, and GenAI interviews probe it because keeping a RAG index, feature store, or warehouse fresh is a constant need, and full reloads do not scale.
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