mysql 查询数据库大小

查询数据库大小

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 = \'数据库名\';

查询数据库表大小

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 = \'数据库表名\';