SELECT 
  IFNULL(B.engine,'TOTALS') "Storage Engine",
  CONCAT( LPAD(REPLACE(FORMAT(B.DSize/POWER(1024,pw),3),',',''),17,' '), ' ',
          SUBSTR(' KMGTP',pw+1,1),'B'
        ) "Data Size", 
  CONCAT( LPAD(REPLACE(FORMAT(B.ISize/POWER(1024,pw),3),',',''),17,' '), ' ',
          SUBSTR(' KMGTP',pw+1,1),'B'
        ) "Index Size", 
  CONCAT( LPAD(REPLACE(FORMAT(B.TSize/POWER(1024,pw),3),',',''),17,' '), ' ',
          SUBSTR(' KMGTP',pw+1,1),'B'
        ) "Table Size" 
FROM (
  SELECT 
    engine,
    SUM(data_length) DSize,
    SUM(index_length) ISize,
    SUM(data_length+index_length) TSize 
  FROM information_schema.tables 
  WHERE table_schema NOT IN('mysql','information_schema','performance_schema') 
    AND engine IS NOT NULL 
  GROUP BY engine WITH ROLLUP
) B,
(SELECT 3 pw) A 
ORDER BY TSize;

Last updated 18 Sep 2018