/* 数据库总存储空间 */select sum(data_length+index_length) size from information_schema.tables;/* 不同数据库的存储空间 */select table_schema,sum(data_length+index_length) size from information_schema.tables group by table_schema order by size desc;/* 指定库下不同表的存储空间 */select table_...【阅读全文】