Re: SQL question on embedded varaibles

Hi Liam,

Darryl and Birgitta are right - what you want to do is not possible the way you try it, and dynamic SQL is often used, to solve this problem.

But ... dynamic SQL ist not the only solution. You can also use the SYSTOOLS.SPLIT table function, to split your variable in individual values.

EXEC SQL SELECT LOC INTO :wLOC
FROM LOCATION
WHERE LTYP NOT IN ('F','H','I','O','B')
AND SUBA IN (
select trim(both '''' from varchar(element, 5))
from table(systools.split( :wSUBA , ','))
)
AND PALT = :wPALT;

If I recalled the syntax of SPLIT and TRIM correctly (I don't give a guarantee) then the sub-select should split your list

'AA ','AB ','AC ','AD ','AE'

into

'AA '
'AB '
'AC '
'AD '
'AE'

Now I thought, that the quotes were just for the list, and you wanted to compare without the quotes - so the TRIM function is used to strip of those quote chars.

And then - the IN operator works on the result table like with any other SQL sub-select.

Just try it out interactively.

HTH

Regards,
Daniel

Am 25.06.2023 um 14:32 schrieb Birgitta Hauser <Hauser@xxxxxxxxxxxxxxx>:

This IN (:wSUBA) will not work with static SQL.
Each option has to be passed as a variable, i.e. IN(:VAR1, :VAR2, :VAR3,
:VAR4)

... alternatively you can use dynamic SQL and then embed your variable in
the SQL statement to be prepared.

Mit freundlichen Grüßen / Best regards

Birgitta Hauser
Modernization – Education – Consulting on IBM i

IBM Champion since 2020

"Shoot for the moon, even if you miss, you'll land among the stars." (Les
Brown)
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and keeping them!"
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-----Original Message-----
From: RPG400-L <rpg400-l-bounces@xxxxxxxxxxxxxxxxxx> On Behalf Of liam
henderson
Sent: Friday, 23 June 2023 18:23
To: rpg400-l@xxxxxxxxxxxxxxxxxx
Subject: SQL question on embedded varaibles

Hi,
I'm trying to use a variable to list some values that I want to use on an IN
statement on my WHERE clause but don't seem to able to get it quite right.
Interactive SQL returns a result but the program doesn't It returns
SQLSTATE='02000' SQLCODE=100

EXEC SQL
SELECT LOC INTO :wLOC
FROM LOCATION
WHERE LTYP NOT IN ('F','H','I','O','B') AND
SUBA IN (:wSUBA) AND
PALT = :wPALT

The string :wSUBA is formatted as 'AA ','AB ','AC ','AD ','AE'
I tried moving the brackets into the string but that didn't work I also
tried removing the quotes and just comma separating but that didn't work Is
what I'm doing even possible or do I need to split them out and check one by
one?
I'm probably doing something really stupid.
Any help much appreciated.
Regards.
Liam.
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