by Alain Raap.
Do you know this query? To check out the overall size of the DB
SELECT engine, count(*) as TABLES, concat(round(sum(table_rows)/1000000,2),'M') rows, concat(round(sum(data_length)/(1024*1024*1024),2),'G') DATA, concat(round(sum(index_length)/(1024*1024*1024),2),'G') idx, concat(round(sum(data_length+index_length)/ (1024*1024*1024),2),'G') total_size, round(sum(index_length)/sum(data_length),2) idxfrac FROM information_schema.TABLES WHERE table_schema not in ('mysql', 'performance_schema', 'information_schema') GROUP BY engine ORDER BY sum(data_length+index_length) DESC LIMIT 10;