| 摘要 |
A system may include a provider database, a reader database, and a database management system. The provider database may include a provider data area having a plurality of provider block addresses, and the reader database may include a reader data area having a plurality of reader block addresses, and a mapping of provider-specific identifiers to block addresses of the plurality of provider data pages and of reader-specific identifiers to block addresses of the plurality of reader data pages. The database management system may modify a database object of the reader database, the object being is associated with a provider-specific identifier; and modify the mapping to map the provider-specific identifier to a first block address of one of the plurality of reader data pages.
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