mysql - How to combine two simple sql queries -


i have following sql query(s):

//get id select id magazine name = 'web designer'   select avatar person newsletter = 1 , id in (  select person_id id person_magazine magazine_id = 9 //use id previous query )

how combine them don't have run 2 queries?

i think need learn joins. following query seem want:

select p.avatar person p join      person_magazine pm      on pm.person_id = p.id join      magazine m      on pm.magazine_id = m.id p.newsletter = 1 , m.name = 'web designer'

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