Doug Burns wrote a very informative paper on Decode, presented at an earlier
UK-OUG meeting. Its available from his web site:

http://doug.burns.tripod.com/decode.html

And the answer to the question posed below is 'yes'.

peter
edinburgh


> -----Original Message-----
> From: Droogendyk, Harry [mailto:[EMAIL PROTECTED]]
> Sent: 07 October 2002 23:59
> To: Multiple recipients of list ORACLE-L
> Subject: RE: SQL and case structure
> 
> 
> Jesse:
> 
> Can I also use the value of another column rather than a 
> literal like my
> example coded?
> 
> e.g.
> 
> select acct_no,
>        decode(substr(acct_no,16,1),'1',field1
>                                    '2',field2
>                                            field3 ) as descr
>   from star.kills
> ;
> 
> 
> TIA
>       
> 
> -----Original Message-----
> Sent: Monday, October 07, 2002 5:28 PM
> To: Multiple recipients of list ORACLE-L
> 
> 
> "CASE" in PL/SQL serves a slightly different function, but 
> DECODE should do
> the trick.  Try:
> 
>   select acct_no, 
>      DECODE(substr(acct_no,16,1),
>        '1','one',
>        '2','two',
>       'other') as DESCR
>     from star.kills;
> 
> I also changed "desc" to "descr", since "desc" is a reserved word.
> 
> HTH!  GL!  :)
> 
> Rich Jesse                           System/Database Administrator
> [EMAIL PROTECTED]              Quad/Tech International, 
> Sussex, WI USA
> 
> > -----Original Message-----
> > From: Droogendyk, Harry [mailto:[EMAIL PROTECTED]]
> > Sent: Monday, October 07, 2002 3:39 PM
> > To: Multiple recipients of list ORACLE-L
> > Subject: SQL and case structure
> > 
> > 
> > Listers:
> > 
> > I've used SAS's version of SQL and it allows the coding of 
> > conditional logic
> > in the SELECT statement:
> > 
> > proc sql;
> >   select acct_no, 
> >      case substr(acct_no,16,1)
> >        when '1'  then 'one'
> >        when '2'  then 'two'
> >        else           'other' 
> >   end as desc
> >     from star.kills;
> > quit;
> > 
> > The same syntax does not work in SQL*Plus for Oracle 8.  Can 
> > someone point
> > me to the correct syntax?  
> > 
> > Secondly, any URLs for this kind of information would be most 
> > appreciated.
> > 
> > Regards,
> > Harry
> -- 
> Please see the official ORACLE-L FAQ: http://www.orafaq.com
> -- 
> Author: Jesse, Rich
>   INET: [EMAIL PROTECTED]
> 
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