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Microsoft® SQL Server 2008 R2 Unleashed
book

Microsoft® SQL Server 2008 R2 Unleashed

by Ray Rankins, Paul Bertucci, Chris Gallelli, Alex T. Silverstein
September 2010
Intermediate to advanced content levelIntermediate to advanced
1704 pages
111h 8m
English
Sams
Content preview from Microsoft® SQL Server 2008 R2 Unleashed

The Change Data Capture Tables

When CDC is enabled for a database and one or more tables, an associated Change Data Capture table is created for each table being monitored. The Change Data Capture tables are used to store the changes made to the data in corresponding source tables, along with some metadata used to track the changes. By default, the name of the CDC change table is schemaname_tablename_CT and is based on the name of the source table.

The first five columns of a Change Data Capture change table are metadata columns and contain additional information relevant to the recorded change:

__$start_lsnIdentifies the commit log sequence number (LSN) assigned to the change. This value can be used to determine the order of the transactions. ...

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Publisher Resources

ISBN: 9780768696585Purchase book