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A better way to format a Decimal


IBM Mainframe Forums -> DB2
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Rohit Umarjikar

Global Moderator


Joined: 21 Sep 2010
Posts: 2572
Location: NYC,USA

PostPosted: Fri Oct 02, 2015 9:15 pm
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I have to format a Decimal (8,5) to a nicely formated data.

e.g.
Code:

case-1
In DB2
100.29536
Output
100.30
case-2
100.00000
output
100
case-3
000.88
output
0.88

I am using the following and I feel this option has too much of hardcoding though it is giving me the right results.

Code:
select
 case when substr(char(100.29536),6,2) = '00'
then  strip(char(cast(ROUND (100.29536,2) as int)))
  when substr(STRIP(LTRIM(CHAR(ROUND(100.29536,2))),B,'0'),1,1) = '.'
 then STRIP(LTRIM(CHAR(ROUND(100.29536,2))),T,'0')
else STRIP(LTRIM(CHAR(ROUND(100.29536,2))),B,'0')
end

  from T1


So I trying to see if there is any direct fuction that can be used or atleast to get no hardcoding done.
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Rohit Umarjikar

Global Moderator


Joined: 21 Sep 2010
Posts: 2572
Location: NYC,USA

PostPosted: Fri Oct 02, 2015 11:22 pm
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I have came up with this and the use is okay with the data quality.
Code:
strip(ltrim(char(decimal(ROUND(100.000,2),8,2))),l,'0')


few of the above cases wouldn't fulfill but fortunately with this data nothing is broken.

Still if anyonehas a better way to tackle such data then I open to see and accomodate the chagnge.
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GuyC

Senior Member


Joined: 11 Aug 2009
Posts: 1281
Location: Belgium

PostPosted: Mon Oct 05, 2015 2:32 pm
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Code:
With Mytable(Mydec) as (select 100.29536 from sysibm.sysdummy1)

select Mydec
      ,varchar_format(Mydec,'999.00')
from MyTable
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Rohit Umarjikar

Global Moderator


Joined: 21 Sep 2010
Posts: 2572
Location: NYC,USA

PostPosted: Wed Oct 07, 2015 8:16 pm
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Thanks..
We are still on V10.0.0 compatibility mode and it also seems the new function mode is disabled for these scalar functions.

Code:
ATTEMPT TO USE NEW FUNCTION BEFORE NEW FUNCTION MODE. SQLCODE=-4700, SQLSTATE=56038, DRIVER=4.14.113
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