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Change Data Capture - LOB Changes Not Propagated To Change Tables (Doc ID 1497855.1)

Last updated on FEBRUARY 18, 2019

Applies to:

Oracle Database - Enterprise Edition - Version 11.1.0.7 to 11.2.0.3 [Release 11.1 to 11.2]
Oracle Database Cloud Schema Service - Version N/A and later
Oracle Database Exadata Cloud Machine - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.

Symptoms

A Change Data Capture (CDC) table has a LOB column present in it and the changes associated with the source table LOB column are not always captured.

In particular it is observed that

1. Updates to LOB columns are not applied to the target change table when _LOB_ASSEMBLY=N.

2. With Lob Assembly enabled inserts and updates to LOB columns are not always applied to the change table.

Cause

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In this Document
Symptoms
Cause
Solution
References


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