DATABASE FRAGMENT CLONING AND MANAGEMENT

摘要

Mechanisms and techniques for database fragment cloning and management are provided. A database object, such as a table, rawest or index, is divided into fragments Each fragment is cloned to create cloned fragments, which operationally are substantially identical to one another. One or more of the cloned fragments may be designated as a primary cloned fragment for performing data operations or as a secondary cloned fragment for servicing as backup. Updates to each fragment are implemented on the primary cloned fragment and are then propagated from the primary cloned fragment to the corresponding secondary cloned fragments.