发明授权
US06651073B1 Method and apparatus for insuring database data integrity without data recovery logging 有权
确保数据库数据完整性的方法和设备,无需进行数据恢复记录

  • 专利标题: Method and apparatus for insuring database data integrity without data recovery logging
  • 专利标题(中): 确保数据库数据完整性的方法和设备,无需进行数据恢复记录
  • 申请号: US09576667
    申请日: 2000-05-23
  • 公开(公告)号: US06651073B1
    公开(公告)日: 2003-11-18
  • 发明人: Robert W. LyleJames Z. TengJay A. Yothers
  • 申请人: Robert W. LyleJames Z. TengJay A. Yothers
  • 主分类号: G06F1730
  • IPC分类号: G06F1730
Method and apparatus for insuring database data integrity without data recovery logging
摘要:
Database tables which are to be loaded with large data objects are defined with a special logging attribute that causes the associated database management system to suspend recovery logging for the databases so defined, but to continue with logging control information, such as space management changes. During a two-phase commit operation for a database transaction in a distributed system, at each database all modified data pages are written to disk before the end of the phase 1 commit, if the pages have not been previously written. This and other write operations are monitored for errors. If any of the changed data pages cannot be written to disk successfully before the end the phase 1 commit operation, then the transaction is rolled back at all databases.
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