Redo log vs undo log (conceptual difference)

Redo log vs undo log (conceptual difference)

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: medium

标签: interviewbit, dbms, topic-specific, database

参考答案摘要

Redo logs record changes that need to be reapplied after a crash. They help complete committed transactions during recovery. Undo logs store old values so changes can be rolled back. They are used whe...

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