mysql查询表的行数和空间使用及其它信息_MySQL

来源：刀刀网

use information_schema;

select concat(round(sum(DATA_LENGTH/1024/1024), 2), 'MB') as data from TABLES;

select concat(round(sum(DATA_LENGTH/1024/1024), 2), 'MB') as data from TABLES where table_schema='dbname';

select table_schema,table_name,table_rows,data_length/1024/1024 from TABLES where table_schema='dbname'

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