How To
Summary
This document describes the steps to follow to resume replication following a DDL change that results in a table structure change.
CDC maintains and depends on metadata describing source and target tables and columns being replicated. When DDL changes occur which results in the table representation in the log to differ versus the image currently in the CDC metadata (usually due to a change to the source table structures), the metadata no longer contains the correct information with which to read source database log records to capture change data during mirroring.
For that reason, following a DDL change that results in table structural changes, some action is required to update the metadata before replication can be performed or resumed. This document describes how to update table definitions to accommodate a DDL change so that replication can proceed.
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Document Information
Modified date:
14 May 2020
UID
ibm16209511