What are database transaction logs and why are they important?
Database transaction logs are records that track all changes made to a database. They are crucial for recovery, auditing, and ensuring data integrity.
How do transaction logs help in data recovery?
Transaction logs allow databases to restore to a previous state by replaying or rolling back transactions, ensuring no data is lost.
Can you explain the difference between physical and logical transaction logs?
Physical logs record the actual changes to the database files, while logical logs capture the operations performed, like INSERT or DELETE.
What happens if a transaction log gets corrupted?
If a transaction log is corrupted, it can lead to data loss or inconsistency. Regular backups and monitoring are essential to mitigate this risk.
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