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Table Size Limits

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Efficient Ops
Efficient Ops
Nov 1, 2023 · Databases

Why MySQL Single Tables Should Stay Below 20 Million Rows: Theory & Practice

This article explains the technical reasons why a MySQL single table should not exceed about 20 million rows, covering limits from auto‑increment primary keys, data‑page structures, B+‑tree storage calculations, and practical partitioning recommendations for large‑scale applications.

B-TreeMySQLPerformance
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Why MySQL Single Tables Should Stay Below 20 Million Rows: Theory & Practice