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Change data capture (CDC) refers to software that records database data activity for tracking purposes from enterprise database transaction logs. CDC mainly deals with tracking changes that occured within the data and its goal is to ensure data synchronicity.
Microsoft offers software with change data capture features. An example of this would be SQL Server 2008, which allows users to record, track and update data changes in real time. There is other software that allows the capture of data changes as well, like InfoSphere Change Data Capture.
CDC improves operational efficiency and saves enterprises time by eliminating the unneeded transfers of data that occur in many databases. It identifies the extraction process from production databases to data warehouses.