April 1999
Intermediate to advanced
584 pages
23h 17m
English
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Data corruption
Data corruption occurs when the structure of the database is intact but the data is not. This situation is caused by incorrect or accidental SQL statements being executed and committed. In this case, you have the following options:
Restore the incorrect table or tables from the most recent export. Take care to ensure that referential integrity is maintained.
Restore the tablespace (in Oracle8), using the tablespace point-in-time recovery process, to just prior to the data corruption. Of course, changes to any other tables in that tablespace made after the recovery point will be lost.
Recover the entire database to a time prior to the data corruption, using either hot or cold backups.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.