Identifying database archive log dependency and backup copy recoverability
US11966297B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 20, 2020 |
| Grant date | Apr 23, 2024 |
| Priority date | — |
| Expiry date | Apr 24, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/219
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
System extracts backup metadata, comprising system committed change numbers, system change numbers, types, and database version identifiers, for backup copies. System generates data structure, comprising start system change numbers, based on minimums of system committed change numbers, end system change numbers, based on maximums of system change numbers, database version identifiers, and identifiers for archive log backup copies. System identifies dependent system change numbers, based on start system change number to end system change number for backup copy corresponding to database version identifier. System identifies, in data structure, backed-up system change numbers, based on start system change numbers to end system change numbers for archive log backup copies corresponding to database version identifier, which are included in dependent system change numbers. If backed-up system change numbers include all of dependent system change numbers, system stores backup copy with each archive log backup copy corresponding to backed-up system change numbers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.