/*查詢mysql資料庫裡面的所有資料庫各自占用大小*/
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;
/*查詢mysql資料庫裡面的單個資料庫占用大小*/
select concat(truncate(sum(data_length)/1024/1024,2),'mb') as data_size,
concat(truncate(sum(max_data_length)/1024/1024,2),'mb') as max_data_size,
concat(truncate(sum(data_free)/1024/1024,2),'mb') as data_free,
concat(truncate(sum(index_length)/1024/1024,2),'mb') as index_size
from information_schema.tables where table_schema = '資料庫名';
/*查詢mysql資料庫裡面的單個資料庫所有表各自占用大小*/
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 = '資料庫名'
group by table_name
order by data_length desc;
/*查詢mysql資料庫裡面的單個資料庫指定表占用大小*/
select concat(truncate(sum(data_length)/1024/1024,2),'mb') as data_size,
concat(truncate(sum(max_data_length)/1024/1024,2),'mb') as max_data_size,
concat(truncate(sum(data_free)/1024/1024,2),'mb') as data_free,
concat(truncate(sum(index_length)/1024/1024,2),'mb') as index_size
from information_schema.tables where table_name = '表名';
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