Complex Query - Joins vs Multiple Views

Question

I am trying to run a query that joins a main table representing people with 7 others that contain demographic and status information. Some of the other tables don't have records or have more than one record per person. For the instances of more than one phone number for a person, I need to filter out all but the active home number record. If the person doesn't have a phone number, I still need a record returned, just without a phone number listed. I have tried joining all the tables in a single query, but can't get every person to show up in the results. If the person doesn't have a phone number, or has a phone number that isn't both active and "Home" then they don't show up... I got around this by using multiple views to make sure everyone was pulled, but the multi level view runs slow as heck... Here are the two approaches. Any ideas?
Here are the views that work:
CREATE OR REPLACE VIEW pinnacle_address AS SELECT p.person_id, a.line1 | | ' ' | | a.line2 | | ' ' | | a.line3 AS StreetAddress, a.city, a.state, a.zip FROM cmn_people p, cmn_people_addresses a WHERE p.person_id=a.person_id(+) and a.Active_Address = 'Y' and a.Address_Type = 'Home';
CREATE OR REPLACE VIEW pinnacle_phone AS SELECT p.person_id, ph.phone_number, ph.phone_number_type FROM cmn_people p, cmn_phone_nos ph WHERE p.person_id=ph.person_id(+) and ph.active_phone_number = 'Y' and ph.primary_flag = 'Y';
CREATE OR REPLACE VIEW pinnacle_people AS SELECT p.person_identifier01, p.last_name, p.first_name, p.middle_name, p.date_of_birth, p.gender, a.StreetAddress, a.city, a.state, a.zip, ph.phone_number, ph.phone_number_type, p.email, p.ssn, p.ethnic, p.fulltime, p.person_id FROM cmn_people p, pinnacle_address a, pinnacle_phone ph WHERE p.person_id=a.person_id(+) and a.person_id = ph.person_id(+);
CREATE OR REPLACE VIEW pinnacle_student AS SELECT DISTINCT p.person_identifier01, p.last_name, p.first_name, p.middle_name, p.date_of_birth, p.gender, p.streetaddress, p.city, p.state, p.zip, p.phone_number, p.email, p.ssn, p.ethnic, p.fulltime, i.student_instance_id, e.comb_id FROM sss_student_enrollments e, sss_student_instance i, pinnacle_people p, cmn_statuses s WHERE e.person_id=i.person_id and i.person_id=p.person_id and i.status_id=s.status_id and s.status in('Active', 'Accepted');
Here's the single sql that doesn't:
CREATE OR REPLACE VIEW pinnacle_test AS SELECT DISTINCT cp.PERSON_IDENTIFIER01, cp.LAST_NAME, cp.FIRST_NAME, cp.MIDDLE_NAME, cp.DATE_OF_BIRTH, cp.GENDER, cpa.LINE1 | | ' ' | | cpa.LINE2 | | ' ' | | cpa.LINE3 AS StreetAddress, cpa.CITY, cpa.STATE, cpa.ZIP, cph.PHONE_NUMBER, cp.EMAIL, cp.SSN, cp.ETHNIC, cp.FULLTIME, si.STUDENT_INSTANCE_ID, se.COMB_ID FROM SSS_STUDENT_ENROLLMENTS se, SSS_STUDENT_INSTANCE si, CMN_STATUSES cs, CMN_PEOPLE cp, (SELECT * FROM CMN_PEOPLE_ADDRESSES WHERE Active_Address = 'Y' and Address_Type = 'Home') cpa, (SELECT * FROM CMN_PHONE_NOS WHERE active_phone_number = 'Y' and primary_flag = 'Y') cph WHERE se.PERSON_ID = si.PERSON_ID and si.STATUS_ID = cs.STATUS_ID and si.PERSON_ID = cp.PERSON_ID and cp.PERSON_ID(+) = cpa.PERSON_ID and cpa.PERSON_ID(+) = cph.PERSON_ID and cs.status in ('Active', 'Accepted');
Thanks in advance,
Erik Marin
[email protected]

Answer 1

CREATE OR REPLACE VIEW pinnacle_student
AS
SELECT DISTINCT p.person_identifier01,
p.last_name,
p.first_name,
p.middle_name,
p.date_of_birth,
p.gender,
a.line1 | | ' ' | | a.line2 | | ' ' | | a.line3 AS StreetAddress,
a.city,
a.state,
a.zip,
ph.phone_number,
p.email,
p.ssn,
p.ethnic,
p.fulltime,
i.student_instance_id,
e.comb_id
FROM sss_student_enrollments e,
sss_student_instance i,
cmn_people p,
cmn_people_addresses a,
cmn_phone_nos ph,
cmn_statuses s
WHERE e.person_id = i.person_id
and i.person_id = p.person_id
and i.status_id = s.status_id
and p.person_id = a.person_id(+)
and p.person_id = ph.person_id(+)
and s.status in ('Active', 'Accepted')
and a.Active_Address(+) = 'Y'
and a.Address_Type(+) = 'Home'
and ph.active_phone_number(+) = 'Y'
and ph.primary_flag(+) = 'Y';
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