MySQL统计库或表大小
mysql查看当前所有的数据库和索引大小select table_schema, concat(truncate(sum(data_length)/1024/1024,2),' mb') as data_size,
concat(truncate(sum(index_length)/1024/1024,2),'mb') as index_size
from information_schema.tables
group by table_schema
order by data_length desc;
mysql查看当前某个数据库和数据库下所有的表的大小
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 = 'mysql'
group by table_name
order by data_length desc;
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