查看单个mysql数据库中各个表的大小

SQL命令为：

SELECT TABLE_NAME,DATA_LENGTH+INDEX_LENGTH,TABLE_ROWS,concat(round((DATA_LENGTH+INDEX_LENGTH)/1024/1024,2), ‘MB‘) as data FROM TABLES WHERE TABLE_SCHEMA=‘dbmysql‘;

或

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 = ‘dbmysql‘ group by TABLE_NAME order by data_length desc;

说明：

TABLE_SCHEMA : 数据库名

TABLE_NAME：表名

ENGINE：所使用的存储引擎

DATA_LENGTH：数据大小

INDEX_LENGTH：索引大小

TABLES_ROWS：记录数

原文：http://my.oschina.net/u/1433006/blog/494500