[BNM] mysql query quandary
Rob Curle
robcurle at mac.com
Tue Dec 2 14:54:37 GMT 2008
hi everyone,
i'm having trouble trying to combine 2 mysql queries into 1. i need
to search a members list (by firstname, lastname, email, etc) and
return the members details and primary address. members can have
several addresses stored in 2 tables for work and personal addresses,
but only one will be marked as their primary address.
has anyone got any suggestions, maybe its possible with subqueries and
unions, but i'm stumped!
heres a trimmed down version of the db schema: http://www.twelvenoon.co.uk/schema.html
// return work addresses
SELECT m.firstname, m.lastname, m.email, mia.department,
i.institution_name, i.street, i.city, i.postcode, c.country_name
FROM members AS m
LEFT OUTER JOIN membersInstitutionAddresses AS mia ON
m.id=mia.member_id
LEFT OUTER JOIN institutions AS i ON mia.institution_id=i.id
LEFT OUTER JOIN countries AS c ON i.country_id=c.id
WHERE mia.primary_address=1
// return perasonal addresses
SELECT m.firstname, m.lastname, m.email, mpa.street, mpa.city,
mpa.postcode, c.country_name
FROM members AS m
LEFT OUTER JOIN membersPersonalAddresses AS mpa ON m.id=mpa.member_id
LEFT OUTER JOIN countries AS c ON mpa.country_id=c.id
WHERE mpa.primary_address=1
cheers,
rob.
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