[Check Mysql Table Size] check mysql table size script #tags: mysql, check_mysql_size, sql

check_mysql_table_size.md

#查看占用空间总大小
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 = 'database_name';
#按照表的占用空间大小排序
SELECT CONCAT(table_schema,'.',table_name) AS 'Table Name', 
CONCAT(ROUND(table_rows/1000000,2),'M') AS 'Number of Rows', 
CONCAT(ROUND(data_length/(1024*1024),2),'M') AS 'Data Size' , 
CONCAT(ROUND(index_length/(1024*1024),2),'M') AS 'Index Size' , 
CONCAT(ROUND((data_length+index_length)/(1024*1024),2),'M') AS 'Total' 
FROM information_schema.TABLES 
WHERE table_schema='database_name' order by Total desc;