Re: How to use SQL CASE

[Justin Dearing <zippy1981@xxxxxxxxx>]

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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