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Outer Joins on multiple tables

Posted on 2008-06-25
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Last Modified: 2008-07-02
I am trying to run a query using MSQuery off a Cache 5.2.3 database, and am having an issue creating an outer join becuase the query requires 3 separate tables.  When I try to change one of the inner joins to an outer join it tells me that I can't have an outer join with three tables.  How can I get around that?  Here is the sql code it is running (I have changed table names, and field names for security purposes)...

SELECT ACCT1.acn1, ACCT1.mbr_1st_nam, Demographics.MMNAM, ACCT1.mbr_lst_nam, Demographics.MNSUF, ACCT1.addr_line1, ACCT1.city, ACCT1.state, ACCT1.zip, ACCT1.mbr_ssn, CCT.Credit_Card_Number
FROM SQLUser.CCT CCT, SQLUser.Demographics Demographics, SQLUser.ACCT1 ACCT1
WHERE Demographics.acn = ACCT1.acn AND CCT.acn = Demographics.acn AND CCT.acn = ACCT1.acn

The question is, how exactly can I create an outer join so that I return ALL accounts from any table?  If I remove the joins wouldn't I just get redundant information?
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Question by:COSMTARFCU
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Expert Comment

by:chapmandew
ID: 21867412
try this:

SELECT ACCT1.acn1, ACCT1.mbr_1st_nam, Demographics.MMNAM, ACCT1.mbr_lst_nam, Demographics.MNSUF, ACCT1.addr_line1, ACCT1.city, ACCT1.state, ACCT1.zip, ACCT1.mbr_ssn, CCT.Credit_Card_Number
FROM
SQLUser.CCT CCT
FULL OUTER JOIN SQLUser.Demographics Demographics ON CCT.acn = Demographics.acn
FULL OUTER JOIN SQLUser.ACCT1 ACCT1 ON Demographics.acn = ACCT1.acn AND  AND CCT.acn = ACCT1.acn

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Author Comment

by:COSMTARFCU
ID: 21867531
Thanks for the response.

When I try that (after changing table names back), I get

[SQLCODE: <-23>:<Label is not listed among the applicable tables>]
[Cache Error: <<Syntax?errdone_2%qaqqt>]
[Details: <Prepare>]
[%msg: < SQL ERROR #23: Label 'ACCT1' is not listed among the applicable tables^SELECT ACCT1.acn1 ,>]

Again, I changed the ACCT1 back to the actual name, and verified that I changed everything to how it should be.
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Accepted Solution

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chapmandew earned 500 total points
ID: 21867566
try this instead...its really not a good idea to alias you tables w/ the same name as the table:

SELECT a.acn1, a.mbr_1st_nam, d.MMNAM, a.mbr_lst_nam, d.MNSUF, a.addr_line1, a.city, a.state, a.zip, a.mbr_ssn,
c.Credit_Card_Number
FROM
SQLUser.CCT c
FULL OUTER JOIN SQLUser.Demographics d ON c.acn = d.acn
FULL OUTER JOIN SQLUser.ACCT1 a ON d.acn = a.acn AND  AND c.acn = a.acn
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