RE: Update file set field = case when exists?

["Wilt, Charles" <WiltC@xxxxxxxxxx>]

Elvis,

Yes that worked, thanks.  I'll have to try and remember that.

I actually just ended up using two statements when I couldn't get the original to work.

This worked also:

update csteqcp A                                              
set cecsts = coalesce((Select 'A' from sysibm/sysdummy1       
                       where exists(select * from csteqnp b   
                                     where a.locnbr = b.locnbr
                                     and a.ctrnbr = b.ctrnbr  
                                     and a.cusnbr = b.cusnbr  
                                     and a.itmctg = b.itmctg) 
                      ),'I')                                  


Just seems like the simple original syntax should have worked :)

Charles Wilt 
--
Software Engineer
CINTAS Corporation - IT 92B
513.701.1307

wiltc@xxxxxxxxxx


> -----Original Message-----
> From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-
> bounces@xxxxxxxxxxxx] On Behalf Of Elvis Budimlic
> Sent: Wednesday, May 28, 2008 2:08 PM
> To: 'Midrange Systems Technical Discussion'
> Subject: RE: Update file set field = case when exists?
>
> Would this work (UNTESTED):
>
> update csteqcp A
> set cecsts = case
>                 (select min(1)
>                  from csteqnp B
>                  where a.locnbr = b.locnbr and
>                        a.ctrnbr = b.ctrnbr and
>                        a.cusnbr = b.cusnbr and
>                        a.itmctg = b.itmctg)
>              when 1 then 'A'
>              else 'I' end
>
> HTH, Elvis
>
> Celebrating 11-Years of SQL Performance Excellence on IBM i, i5/OS and
> OS/400
> www.centerfieldtechnology.com
>
>
> -----Original Message-----
> Subject: Update file set field = case when exists?
>
> Is the following not supported or am I doing it wrong?
>
> update csteqcp A
> set cecsts = case
>                when exists (select * from csteqnp B
>                             where a.locnbr = b.locnbr
>                               and a.ctrnbr = b.ctrnbr
>                               and a.cusnbr = b.cusnbr
>                               and a.itmctg = b.itmctg)
>                  then 'A'
>                else 'I'
>              end
>
> Charles Wilt
>
>
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