Get current MySQL database size in MB

database-size.sql

-- Group by database (MB).
SELECT table_schema 'Database Name',
	SUM(data_length + index_length ) / 1048576 'Database Size (MB)',
	SUM(data_free) / 1048576 'Free Space (MB)'
	FROM information_schema.TABLES
	GROUP BY table_schema;
	
-- Group by database and table (bytes).
SELECT table_schema 'databasename', 
table_name 'tablename',
SUM(data_length) 'datasize', 
SUM(index_length) 'indexsize', 
SUM(data_length + index_length) 'totalsize' 
FROM information_schema.tables
GROUP BY table_schema, table_name
ORDER BY databasename, tablename;