mysql每个表总的索引大小

/* 指定的数据库 每个表的索引  不包含主键索引的大小*/
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 = '你的数据库名'  
group by TABLE_NAME  
order by data_length desc