MySQL incorrect key file for tmp table when making multiple joins

Question

I don\'t come here for help often but I am pretty frustrated by this and I am hoping someone has encountered it before.

Whenever I try to fetch records from a table

Answer 1

run this

REPAIR TABLE `core_username`,`core_site`,`core_person`;

or do this:

select * from (
 SELECT * FROM `core_username`
 INNER JOIN `core_person` ON (`core_username`.`person_id` = `core_person`.`id`)
 INNER JOIN `core_site` ON (`core_username`.`site_id` = `core_site`.`id`)
 LIMIT 1)
ORDER BY `name` ASC