Question

I have a Rails 2.3.8 application running over a MySql DB.
Is it possible to check the actual size of the DB (in megabytes) through the Rails application?
If so, can i get a detailed view such as how many megabytes does a certain table takes?

Any thoughts?

Answer 1

You can fetch all you need from INFORMATION_SCHEMA

Some query from that page:

SELECT table_schema 'database',
concat( round( sum( data_length + index_length ) / ( 1024 *1024 ) , 2 ) , 'M' ) size
FROM information_schema.TABLES
WHERE ENGINE=('MyISAM' || 'InnoDB' )
GROUP BY table_schema;