DatabasesData/ML/AIHigh signal

Change Data Capture

Also written as CDC

A technique that streams every change made in a database to other systems as it happens, instead of re-copying whole tables on a schedule.

Think of it like

Like forwarding each amendment to a contract as it's signed, rather than posting the whole contract again every night.

Junior or senior?

A real depth signal in data engineering.

Senior sounds like

Talks about ordering, replaying, or what happens when the consumer falls behind.

Ask them

“What happened in your CDC pipeline when the downstream consumer went down for a while?”