数据库库表容量大小计算

-- 库容量大小
SELECT
    table_schema AS '数据库',
    sum( table_rows ) AS '记录数',
    sum(
    TRUNCATE ( data_length / 1024 / 1024, 2 )) AS '数据容量(MB)',
    sum(
    TRUNCATE ( index_length / 1024 / 1024, 2 )) AS '索引容量(MB)' 
FROM
    information_schema.TABLES 
-- WHERE table_schema = 'aliyun_compliance_audit'; -- 指定库    
GROUP BY table_schema 
ORDER BY
    sum( data_length ) DESC,
    sum( index_length ) DESC;


-- 数据库表容量大小
SELECT
    table_schema AS '数据库',
    table_name AS '表名',
    table_rows AS '记录数',
    TRUNCATE ( data_length / 1024 / 1024, 2 ) AS '数据容量(MB)',
    TRUNCATE ( index_length / 1024 / 1024, 2 ) AS '索引容量(MB)' 
FROM
    information_schema.TABLES 
-- WHERE table_schema = 'aliyun_compliance_audit'; -- 指定库 
ORDER BY
    data_length DESC,
    index_length DESC;