| 摘要 |
A method, system, and computer program product to efficiently delete data from a database is disclosed. The method, system, and computer program product may include structuring the database to have a plurality of tables having indexes to related rows and having keys with key values associated with particular rows. The method, system, and computer program product may include deleting rows in the database tables by deleting keys in indexes related to the rows in an order such that corresponding rows are deleted based on relation to the keys. The method, system, and computer program product may include ordering the rows to be deleted based on concepts such as hierarchy, spatial locality, temporal locality, frequency of access, number of rows, and value uniqueness. Comparatively closely related relationships may be prioritized to be deleted. |
