Use Extraction When Opening Is Risky
If ORA-00600 appears during startup, query, export, or recovery, repeated force-open attempts may make diagnosis harder. A file-level extraction test gives you a safer recovery path.
- Work from copied datafiles whenever possible.
- Use DBRECOVER to identify schemas and target tables.
- Check sample rows and record counts before buying.
- Escalate to emergency support for complex SYSTEM or dictionary damage.