Question

How do I write a SQL query to find out what the group ID is and then display list of Options from that Group ID.

I can do it by two queries, for example:

//Get the group ID 
SELECT option_group_id FROM options WHERE id =14122

//Now get a list of OptionID from that group ID
SELECT id, name FROM options WHERE option_group_id = 999

How do I put this into 1 query?

Answer 1

Neither. You use an inner join against the same table:

select o2.id, o2.name
from options o1
inner join options o2 on o2.option_group_id = o1.option_group_id
where o1.id = 14122