Left join problem

Question

hi guys,
please see this query once.
in 3rd left join i am getting error like subqueries not allowed here.
can you help me to reslove this.
SELECT
'20060201'||d.acct_num as user_ref_area,
ind.name_first||' ' ||ind.name_last AS full_name,
PA.ADDR_FIRST_LINE,
PA.CITY_NAME||','||
PA.STATE_ABBR as city_state,
PA.ZIP_CDE AS zip_cde,
CASE WHEN iphr.pho_stat_cde ='G' THEN
'000'||pha.pho_exchg_num||pha.pho_line_num
ELSE '0000000000'
END AS home_phone,
ind.ss_num,
d.activity_date,
d.acct_num
FROM (
select j.acct_num,j.activity_date
from (
select dxr.acct_num,
to_char(o3.o3bfct) as activity_date
from debtp.o3
JOIN debtp.acct_xref dxr
ON o3.o3e5cd = dxr.e5cd
WHERE o3dhce in ('aj','ja','ta')
AND load_dt >=to_date('2006/01/28','yyyy/mm/dd')-- trunc(sysdate-4) --NEED TO USE SYSDATE-4                                        
UNION
select account_number,TO_CHAR(data_date, 'YYYYMMDD') as activitydate
from clctdm.triad_history
where data_date =to_date('2006/01/31','yyyy/mm/dd')--trunc(sysdate-1) --NEED TO USE SYSDATE-1
and delq_coll_ind in ('960','961','962','963')
) j
left join
select ACCT_NUM
from hbivt1.pp_fd_accts FDAI
where FDAI.DATE_activity >='20060102'--to_char(trunc(add_months(sysdate,-1)),'yyyymmdd')
) k
on j.acct_num =k.acct_num
where k.acct_num IS null
) d
JOIN AUTOR3.ACCT_XREF XR --lookup for arr_id_acct values
ON d.acct_num =xr.acct_num
JOIN AUTOR3.ARR_IP_POSTL_REL AIPL --lookup for postl_addr_id
ON AIPL.ARR_ID = XR.ARR_ID_ACCT
and aipl.actv_ind ='0'
join autor3s.indv ind --table with values for FIRSTDATA
on aipl.hi_num =ind.hi_num_indv
Left JOIN AUTOR3s.POSTL_ADDR PA ----table with values for FIRSTDATA
ON aipl.POSTL_ADDR_ID = PA.POSTL_ADDR_ID
left join autor3.ip_pho_rel iphr
on iphr.hi_num =aipl.hi_num and
start_dt_tm =(
select max(iphr2.start_dt_tm) as start_dt_tm from AUTOR3.IP_PHO_REL IPHR2
WHERE iphr2.rank_num='1'
and iphr2.ip_pho_rel_cde='001000'
and iphr2.actv_ind='0'
and iphr2.hi_num =aipl.hi_num
)

Answer 1

Oracle only supports outer joins as extended equalities.
You'll have to use the syntax:
FROM PC2KAUDIT,AUDITDETAIL
WHERE
... (other where clause)
AND
PC2KAUDIT.AUDITID = AUDITDETAIL.AUDITID (+)
This will do basically the same thing. Unfortunately there is no common syntax, unless oyu have a fancy ODBC driver, which might do this translation for you.
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