Beike Product & Technology
Apr 13, 2018 · Databases
Understanding MySQL ALTER Operations and Online Schema Change (OSC) Tools
This article explains the detailed steps of MySQL ALTER operations, compares single‑instance and master‑slave scenarios, introduces various online schema‑change tools such as pt‑OSC, outlines native MySQL OSC support, discusses limitations, and provides practical recommendations for safely performing large‑table DDL.
ALTERMySQLOnline Schema Change
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