Mysql database sizes

mysql_db_sizes.sql

SELECT 
  table_schema "Data Base Name", 
  sum( data_length + index_length ) / 1024 / 
  1024 "Data Base Size in MB", 
  sum( data_free )/ 1024 / 1024 "Free Space in MB" 
FROM 
  information_schema.TABLES 
GROUP BY table_schema ;