统计mysql 库 数据表 内存 和 索引占用磁盘数
SELECT TABLE_NAME, concat( TRUNCATE ( data_length / 1024 / 1024, 2 ), ' MB' ) AS data_size, concat( TRUNCATE ( index_length / 1024 / 1024, 2 ), ' MB' ) AS index_size FROM information_schema.TABLES WHERE TABLE_SCHEMA = 'you_database_name' ORDER BY data_length DESC;
统计mysql 数据 数据表 某张表 数据内存 和 索引占磁盘树
SELECT TABLE_NAME, concat( TRUNCATE ( data_length / 1024 / 1024, 2 ), ' MB' ) AS data_size, concat( TRUNCATE ( index_length / 1024 / 1024, 2 ), ' MB' ) AS index_size FROM information_schema.TABLES WHERE TABLE_SCHEMA = 'you_database_name' AND TABLE_NAME = 'table_name';