SELECT @@hostname, @@version, @@version_comment, @@version_compile_machine;
SELECT NOW();
SELECT table_schema,
 SUM(data_length+index_length)/1024/1024 AS total_mb,
 SUM(data_length)/1024/1024 AS data_mb,
 SUM(index_length)/1024/1024 AS index_mb,
 COUNT(*) AS tables,
 CURDATE() AS today
FROM information_schema.tables
WHERE table_schema NOT IN ('mysql','sys','performance_schema','information_schema')
GROUP BY table_schema
ORDER BY 2 DESC;

SELECT table_schema,engine,table_collation,
 COUNT(*) AS tables
FROM information_schema.tables
WHERE table_schema NOT IN ('mysql','sys','performance_schema','information_schema')
GROUP BY table_schema,engine,table_collation;