Re:Numeric comparison in DECODE statement

From: <Brian_P_MacLean_at_eFunds.Com>
Date: Mon, 20 May 2002 08:33:34 -0800
Message-ID: <F001.00464AD1.20020520083334@fatcity.com>

You can do numeric logic by using the SIGN() function. Here is the solution I think he was looking for:

SQL_at_sandbox:test:8.1.7:OPS$ORACLE:12,34570>r   1 select ltrim(decode(sign(minutes - 59), 1, to_char(minutes/60, '9.99') ||' hours',

  2                                             to_char(minutes)||'
minutes'
  3                     )
  4              ) TIME

  5 from bart
  6* order by minutes

TIME

---

13 minutes
55 minutes
1.08 hours
3.50 hours

SQL_at_sandbox:test:8.1.7:OPS$ORACLE:12,34570>select * from bart order by 1;

  MINUTES

---

       13
       55
       65
      210

Brian P. MacLean
Oracle DBA, OCP8i

                                                                                                                                       
                      dgoulet_at_vicr.com                                                                                                 
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                                               Subject:  Re:Numeric comparison in DECODE statement                                     
                                                                                                                                       
                      05/20/02 08:38 AM                                                                                                
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Robert,

    That won't work. Decode works like a switch statement. If condition 1 then
value 1. You can't imbed logic operators therein.

DickG.

____________________Reply Separator____________________
Author: Yexley Robert D Contr Det 1 AFRL/WSI <Robert.Yexley_at_wpafb.af.mil>
Date:       5/20/2002 7:08 AM

I was wondering if anyone might have tried this before, because I can't seem to
get it to work. I'd like to be able to determine which unit of measure to concatenate to a value by using a decode statement in the query. I have a column in the database that stores time in minutes, and I'd like to be able to
show the output in minutes if the value is less than 60, but in hours (such as
3.27 hours) if the value is greater than 60. So far I've tried the following
statement, but it seems to be blowing up on the first comparison operator:

SELECT decode(in_value, to_char(to_number(in_value) <= to_number('60')), to_char(in_value)||' minutes', to_char(to_number(in_value) > to_number ('60')),
to_char(in_value/60, '9.99')||' hours')
  FROM dual
/

I'm selecting from dual just until I can get the query working at all. Is what
I'm trying to do even possible? Any help or ideas would be greatly appreciated.
 Thanks in advance.

_YEX_
/*

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|| Oracle Programmer/Analyst
|| Easylink Services Corporation
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Received on Mon May 20 2002 - 11:33:34 CDT