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RE: InstantDB: Problem with OUTER JOINS


I understand that instant DB cannot do more than 1 join using "outer" or "inner" methods.
You can get around doing more than 1 inner join by performing it in the where clause.
Regards,
Rhys

-----Original Message-----
From:	Jonathan Lai Lam [SMTP:jlailam@hemtech.co.za]
Sent:	Friday, 16 February , 2001 7:35
To:	instantdb@enhydra.org
Subject:	InstantDB: Problem with OUTER JOINS 

Hi there, I am having some problems with this query.

I have got three tables A,B and C. Now I need to make a outer join
between table A + B and C + B

JobTypeSize  = A
JobEstimate  = B
NoOfColors  = C

  select *
    from JobTypeSize jts LEFT OUTER JOIN JobEstimate je ON
je.jobTypeId    = jts.jobTypeId   AND je.sizeId     = jts.sizeId,
               NoOfColors  noc LEFT OUTER JOIN JobEstimate je ON
je.noOfColorsId = noc.noOfColorsId AND je.jobTypeId = noc.jobTypeId
where jts.jobTypeId = 1
     and noc.jobTypeId = jts.jobTypeId;

Now the problem is that I don't know the right syntax, and the result is
that instantdb rightfully thinks there are two instances of table B
JobEstimate, where as I am only want there to be one instance.

Please is there a way to get this right?

Thank you kindly

Jon


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