Questions under this tag are expected to relate to Change Data Capture technologies available in many RDBMS server products. Change data capture is designed to capture insert, update, and delete activity applied to Server tables, and to make the details of the changes available in an easily ...

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Which parameters and metrics to look at when CDC based replication is causing high load?

I'm investigating the reasons why a Tungsten Replicator extractor is causing heavy load on an Oracle 11g database. The replication is set up to use synchronous CDC and there is no unusual load while ...
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Change Tracking across several Tables

I'm looking into providing DB level change tracking within my system. I need to be able to track changes at an entity level, rather than just individual tables. Right now, we have triggers on each of ...
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Any way to ensure that Change Data Capture clean up process does not delete the change data that you haven't processed yet?

I'm using CDC feature to track changes that are being made, since the cleanup period is set to 3 days by default, I have to run jobs to archive this change data from the CDC system tables to my ...
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Options for copying data out of continuously updating tables

I work with a pretty large (O(10^1) TB) DB2 (LUW, v. 9.7) database. It's got data coming in on a continuous basis via Golden Gate replication from another DB2 database. It's used for business ...
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Change Data Capture not running when Mirror is Suspended

We have 2 SQL 2012 SP2 Enterprise servers that have some mirrored databases. One of these databases also has CDC enabled on a number of tables so that we can run some business logic when there are ...
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CDC and datamodel updates, best methodology?

We're about to start using CDC to track changes to a large number of tables in our db's. But since our datamodel is rather frequently updated, I'm wondering what is the best method for easily keeping ...
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Lookback Query utilizing Change Data Capture in SQL Server 2014?

I'm using SQL Server 2014 to maintain a small database and while looking for a way to keep a History of my Data I came upon the Change Data Capture Mechanism. My question now is if there is an easy ...
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Change Data Capture for Asynchronous Secondary Replica

MSDN states the following in Active Secondaries: Readable Secondary Replicas (AlwaysOn Availability Groups) for SQL Server 2014: Limitations and Restrictions: Change tracking and change data ...
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Can CDC read through a log file when the agent job hasn't been running?

We currently had CDC running on our SQL server, however, at some point last week the CDC capture job stopped running and started throwing an error. At this point when it stopped somebody had restored ...
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Sql server 2012 log file growth of cdc enbled db

All, I have cdc enabled on a Sql Server 2012 database that is a primary db in transactional replication and the primary in a availability group. The log file is a little over 95 GB, a historic high. I ...
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CDC with SSIS: process all changes in order of occurrence

I have a SSIS package that I'm using to sync (in an on going basis) all changes from one table to another. Note that I need to sync ALL changes and not just NET changes. My problem is that I cannot ...
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Configuring SQL Server 2008 R2 Change Data Capture with SSAS

I'm completely new to SQL Server Analysis Servers (SSAS) so you'll have to excuse my ignorance. I've been running through the MSDN SSAS tutorial get a handle on how to use SSAS. We have SQL Server ...
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Any caveats using SQL Server 2008 CDC off replicated tables?

Main TRX System ---- Replicated to ---> "Archive" --- CDC/ETL --> Some NOSQL DB... For performance reasons we never run any ETL off the main transnational system only off the archive. I ...
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Change Data Capture : size of table lsn_time_mapping is increasing too much

I have enabled Change Data Capture on 1 of the database on my MS SQL Server. There are around 200 table objects in that DB but currently i have enabled CDC for only 3 tables and changes in those 3 ...
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CDC auditing - Unanswered questions

EDIT: Added some comments from the stuff I was able to find out, in case future onlookers are interested. I'm completely new to CDC, and am in the process of implementing it to a large DB for the ...