MySql 查看使用空间大小

一 MySql查表占用空间大小

MySql查表占用空间大小:

SELECT 
    table_schema AS `Database`, table_name AS `Table`, 
    CONCAT(ROUND(((data_length + index_length) / 1024 / 1024), 2),' MB') `Size` 
FROM information_schema.tables 
WHERE table_schema='kyc'
ORDER BY (data_length + index_length) DESC;

查到各表空间容量按大到小排序，如下图：

 

二 MySql查数据库占用空间大小

MySql查数据库占用空间大小:

SELECT 
TABLE_SCHEMA, CONCAT(SUM(DATA_LENGTH)/1024/1024,' MB') AS DATA_SIZE, CONCAT(SUM(INDEX_LENGTH)/1024/1024,'MB') AS INDEX_SIZE
, CONCAT(SUM(DATA_LENGTH + INDEX_LENGTH)/1024/1024,' MB') AS TOTAL_SIZE
FROM information_schema.TABLES
GROUP BY TABLE_SCHEMA;

 查到的各数据库大小，如下图：