SELECT TABLE_NAME,DATA_LENGTH+INDEX_LENGTH,TABLE_ROWS,concat(round((DATA_LENGTH+INDEX_LENGTH)/1024/1024,2), 'MB') as data FROM information_schema.tables WHERE TABLE_SCHEMA='test' ORDER BY DATA_LENGTH+INDEX_LENGTH desc;

结果展示:

 mysql查询数据库中每一张表的内存大小 随笔

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