Various mysql database commands

mysql.sql

/* database size */

SELECT table_schema "table_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;



/* size of all tables */

SELECT table_name AS Tables, 
round(((data_length + index_length) / 1024 / 1024), 2) "Size in MB" 
FROM information_schema.TABLES 
WHERE table_schema = "table_name";