Largest tables on MySQL Server

Query below to find out table size. Here is original article by Peter Zaitsev Click Here

SELECT
  CONCAT(table_schema, '.', table_name),
  CONCAT(ROUND(table_rows / 1000000, 2), 'M')  AS rows,      
  CONCAT(ROUND(data_length / ( 1024 * 1024 * 1024 ), 2), 'G') AS data,          
CONCAT(ROUND(index_length / ( 1024 * 1024 * 1024 ), 2), 'G') AS idx,
 CONCAT(ROUND(( data_length + index_length ) / ( 1024 * 1024 * 1024 ), 2), 'G') AS total_size,         ROUND(index_length / data_length, 2)  AS idxfrac
FROM  
information_schema.TABLES ORDER  BY data_length + index_length DESC LIMIT  10;