mysql统计数据库使用存储大小

SELECT

table_schema AS database_name,

ROUND(SUM(data_length) / 1024 / 1024 / 1024, 2) AS data_gb,

ROUND(SUM(index_length) / 1024 / 1024 / 1024, 2) AS index_gb,

ROUND(SUM(data_length + index_length) / 1024 / 1024 / 1024, 2) AS total_gb

FROM information_schema.tables

WHERE table_schema = 'master'

GROUP BY table_schema;