seniorMySQL
Redo vs Undo Logs
Updated May 4, 2026
Short answer
Redo for durability; Undo for rollback/MVCC.
Deep explanation
Redo logs handle crash recovery; Undo logs allow rolling back transactions.
Unlock with a Pro subscription to view this section.
View pricingReal-world example
No real-world example available yet.
Unlock with a Pro subscription to view this section.
Upgrade to ProCommon mistakes
No common mistakes listed yet.
Unlock with a Pro subscription to view this section.
Upgrade to ProFollow-up questions
No follow-up questions available yet.
Unlock with a Pro subscription to view this section.
Upgrade to Pro