Case:
Customers are Windows operating systems. The database is Oracle 11G, which is HIS database, and stores on a disk array. Due to the frequent use of the database, there are many fragments, and the emergency file system is damaged. After CHKDSK, a large number of table files become 0.
Solution:
Engineers comprehensively retrieve the database pages in the file system through autonomous programs.Reorganize page table, link header.Analyze the original database storage chain to form a virtual RunList.Export data based on virtual RunList.