I have 2 tables. For simplicity, first table Parent
contains only id
and name
. Other table Child
contains id
and parent_id
.
I need a queryThere are going to select Parent bybe many parent rows with the same name. They will have different childrens, so I want to be able to select a parent row only if it has childs matching providedfrom the list of child id
fieldI provide.
Let's say I want a Parent with name 'test' only if it has Childs with id (223, 224, 225). Only those, no more, no less.
So far I achieved this with following query:
SELECT p.*, GROUP_CONCAT(c.id) as childs
FROM `parent` p
INNER JOIN `child` c ON p.id = c.parent_id
WHERE p.name = 'test'
GROUP BY p.name
HAVING childs = '223,224,225'
ORDER BY c.id
However I think it's not a good solution if it uses id concatenation