Question

I have a SQL query as follows

SELECT * FROM epf_application WHERE
application_id IN
(SELECT
application_id FROM
epf_application_device_type WHERE
device_type_id IN
(SELECT
device_type_id FROM
epf_device_type WHERE
name=”someDevice”) LIMIT 30) LIMIT
30

When I run it in phpMyAdmin, I get the following error

1235 – This version of MySQL doesn’t yet support ‘LIMIT & IN/ALL/ANY/SOME
subquery’

From the error, I am guessing that there is a problem with placing LIMIT in a subquery. Any suggestions on how I can fix this?

Answer 1

SELECT 
 ea.* 
FROM 
 epf_application ea JOIN epf_application_device ead 
  ON ead.application_id = ea.application_id 
 JOIN epf_device_type edt 
  ON edt.device_type_id = ead.device_type_id 
WHERE 
 edt.name = 'someDevice' 
LIMIT 30