RE: Determine if a uniquely keyed logical exists for a givenphysical

Curious, why move the join to the where clause?

Rob Berendt
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"Wilt, Charles" <CWilt@xxxxxxxxxxxx> 
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02/04/2005 02:54 PM
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RE: Determine if a uniquely keyed logical exists for a givenphysical






Thanks Don.  That put m on the right track.

For the archive, I made some corrections to Don's code.

select dbxlib, dbxfil 
from qadbxref, qadbfdep 
where dbxunq = 'U' 
  and dbxlib = dbfldp and dbxfil = dbffdp 
  and dbflib = 'yourlib' and dbffil = 'your_pf'

Charles Wilt
iSeries Systems Administrator / Developer
Mitsubishi Electric Automotive America
ph: 513-573-4343
fax: 513-398-1121
 

> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx
> [mailto:midrange-l-bounces@xxxxxxxxxxxx]On Behalf Of Don Tully
> Sent: Wednesday, February 02, 2005 5:12 PM
> To: Midrange Systems Technical Discussion
> Subject: RE: Determine if a uniquely keyed logical exists for a
> givenphysical
> 
> 
> Charles,
> 
> Here is an SQL that you can run to find unique keys for a PF.
> 
> Select dbflib, dbffil from qadxref
> join   qadbfdep  on dbxfil = dbffil
> Where dbxlib = 'yourlib' and dbxfil = 'your_pf' and dbxunq = 'U'
> 
> I am not currently attached to an AS400 to verify this but it 
> should work
> for you.  It will return the name of all dependent logicals over
> YourLib/your_pf with a unique key in any library.
> 
> Don Tully
> Tully Consulting LLC
> 
> 
> >>
> I've got a physical file that was defined without a unique key.
> 
> Is there some way to tell if some logical over that physical 
> has a unique
> key?
> 
> Of course I could always do it the hard way:
> 1) Look at the source or the DSPFD output for every logical
> 2) Try to write some duplicate records.
> 
> But I'm wondering if there's someplace on the system that tracks if a
> physical file has some unique key defined somewhere.
> 
> Thanks,
> 
> 
> Charles Wilt
> iSeries Systems Administrator / Developer
> Mitsubishi Electric Automotive America
> ph: 513-573-4343
> fax: 513-398-1121
> 
> 
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