The Code is the Design

SELECT CONCAT(table_schema, '.', table_name),        CONCAT(ROUND(table_rows / 1000000, 2), 'M')                                    rows,        CONCAT(ROUND(data_length / ( 1024 * 1024 * 1024 ), 2), 'G')                    DATA,        CONCAT(ROUND(index_length / ( 1024 * 1024 * 1024 ), 2), 'G')                   idx,        CONCAT(ROUND(( data_length + index_length ) / ( 1024 * 1024 * 1024 ), 2), 'G') total_size,        ROUND(index_length / data_length, 2)                                           idxfrac FROM   information_schema.TABLES ORDER  BY data_length + index_length DESC LIMIT  10; From  http://www.mysqlperformanceblog.com/2008/02/04/finding-out-largest-tables-on-mysql-server/