Hi,
You can't do it in this way!
There are 3 options:
1. pass a host variable for each parameter specified in the IN predicate
2. use dynamic SQL
3. Try something strange like this:
/Free
//Build your string containing all elements separated by a comma
Path = 'Data1' + ', ' + 'Data2' + ', '+ ...;
Exec SQL
Declare get cursor with return to client for
SELECT distinct Column1, Column2, Column3
FROM Table
WHERE :Path like '%' concat Trim(Column3) concat ', ' concat
'%';
... etc
I didn't try it, but it should work and I'm not sure about the performance.
Mit freundlichen Grüßen / Best regards
Birgitta Hauser
"Shoot for the moon, even if you miss, you'll land among the stars." (Les
Brown)
"If you think education is expensive, try ignorance." (Derek Bok)
"What is worse than training your staff and losing them? Not training them
and keeping them!"
-----Ursprüngliche Nachricht-----
Von: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] Im Auftrag von Needles,Stephen J
Gesendet: Thursday, 21.6 2012 20:33
An: midrange-l@xxxxxxxxxxxx
Betreff: Embedded SQL using IN and a host variable
I have a need to accept a list of values that needs to be compared to a
column in a table using an embedded SQL statement in RPGLE.
The list:
'data1'
'data2'
This list is assembled so that path looks like:
'data1','data2'
When used in the SQL statement...
Select stuff from table where column3 in (:path);
I end up with an SQLCod = 100.
Running the SQL outside of the program produces the needed data.
Select * from table where column3 in ('data1','data2');
Is there a solution short of repeating the condition over and over again?
Using STRIP and TRIM with the host variable had no impact.
Stub of Code below:
dpath s 9999
dcolumn1 s 5
dcolumn2 s 3
dcolumn3 s 9999
/free
eval path = '''';
eval path = %trim(path) +
'data1' + '''';
eval path = %trim(path) + ',' + '''' +
'data2' + '''';
exec sql
declare get cursor with return to client for
SELECT distinct
Column1, Column2, Column3 FROM Table WHERE
Column3 in (:path);
exec sql open get;
exec sql fetch get into :Column1, :Column2, :Column3;
if sqlcod = sqlcod;
eval sqlcod = sqlcod;
endif;
/end-free
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