======================= Basic operations in CDC ======================= The CDC log table reflects operations that are performed on the base table. Different types of operations give different corresponding entries in the CDC log. These operations are: * inserts, * updates, * single row deletions, * row range deletions, * partition deletions. Note that TTL expirations are not operations, and not reflected in the CDC log tables. If you do need CDC events when entire rows expire, consider using `per-row TTL `_ which does generate special CDC events when rows expire. The following sections describe how each of these operations are handled by the CDC log. .. include:: /features/cdc/_common/cdc-updates.rst .. include:: /features/cdc/_common/cdc-inserts.rst .. include:: /features/cdc/_common/cdc-row-deletions.rst .. include:: /features/cdc/_common/cdc-row-range-deletions.rst .. include:: /features/cdc/_common/cdc-partition-deletions.rst