Re: How to use SQL CASE

You might be able to achieve this more elegantly with a PIVOT:

http://stackoverflow.com/questions/13579143/how-can-i-pivot-a-table-in-db2

The PIVOT might perform well enough where you can keep that as a VIEW and
keep your original TABLE (Physical File) as to store the data. and then
just SELECT from the VIEW when you need that data.






On Thu, Jun 11, 2015 at 9:32 AM Alan Shore <ashore@xxxxxxxx> wrote:

Hi everyone
Before I forget - we are on V5r4 - hopefully moving up to the latest
release very soon
Here is my predicament
I have a file that contains 3 fields
User Profile name
Box Size
Count

Box size can have valid values of '0', '1', '2', '3', '4', '5', '6', '7',
'8', '9'
I want to create a new file with the following
SELECT OPER,
case BOX_SIZE when '1'then SEL0003 end as Count1,
case BOX_SIZE when '2'then SEL0003 end as Count2,
case BOX_SIZE when '3'then SEL0003 end as Count3,
case BOX_SIZE when '4'then SEL0003 end as Count4,
case BOX_SIZE when '5'then SEL0003 end as Count5,
case BOX_SIZE when '6'then SEL0003 end as Count6,
case BOX_SIZE when '7'then SEL0003 end as Count7,
case BOX_SIZE when '8'then SEL0003 end as Count8,
case BOX_SIZE when '9'then SEL0003 end as Count9,
case BOX_SIZE when '0'then SEL0003 end as Count0,
case BOX_SIZE when not in ('0', '1', '2', '3', '4', '5', '6', '7'
'8', '9',) then
SEL0003 end as Count_Other
FROM file

It's the last case clause that I am having a problem with
case BOX_SIZE when not in ('0', '1', '2', '3', '4', '5', '6', '7'
'8', '9',) then
SEL0003 end as Count_Other



I want to capture the count if its not a valid value into its own field

I hope this makes sense
As always - all response gratefully accepted



Alan Shore
E-mail : ASHORE@xxxxxxxx
Phone [O] : (631) 200-5019
Phone [C] : (631) 880-8640
'If you're going through hell, keep going.'
Winston Churchill

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