HotshardLearn ↗Change Data CaptureWRITEREADCHECKPOINTCRASH

Change Data Capture — pick a scenario

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Watch for

The cursor stepping down the log and a matching event appearing on the output stream each time.

More about this scenario
You'll learn

How a CDC reader turns a database's committed changes into an ordered event stream by tailing its log.

How it runs

The reader advances a cursor one record at a time along the write-ahead log, emitting an event per record it reads.