How do you design safe schema migrations with minimal downtime?

How do you design safe schema migrations with minimal downtime?

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

Safe migrations avoid locking tables for long periods. Changes are broken into small, backward-compatible steps. New columns are added first, then code is updated, and old columns are removed later. M...

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