You can find out about disk space usage of all tables within your database by running this:
SELECT table_name AS `Table`, round(((data_length + index_length) / 1024 / 1024), 2) `Size (MB)` FROM information_schema.TABLES WHERE table_schema = "$your_database";
Replace $your_database
here.
To find out the disk usage of a single column:
SELECT sum(char_length($your_column))/1024/1024 FROM $your_table
Result is in megabytes again.
Posted by Thomas Eisenbarth to makandra dev (2016-04-06 08:36)