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SQL Server - Interview Questions
What do you understand by Change Data Capture?
Change Data Capture or most commonly known as CDC is used to record INSERT, UPDATE, DELETE activities applied on the tables. So, as the name suggests, Change Data Capture is used to capture the data that has been changed recently. The column information and metadata required to apply the changes to the target environment are captured for the modified rows and are eventually stored in the change tables. These change tables are the mirror image of the original column structure.  
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