RE: using a DS with a stored procedure xml method

You can format the entire pile of data as xml and pass it as an input
parameter field that is described as a CHAR that is as big as you need, or
as a BLOB or CLOB as needed (you will need to use SQL to define these
data-types)).



Define the xml's structure with repeating structures to represent the
multiple rows.



<xml>

<row>

<field1 />

<field2 />

<field3>some data</field3>

</row>

<row>

<field1 />

<field2 />

<field3>some more data</field3>

</row>

</xml>



Then describe in your RPG program a DS that describes each row as an
occurrence for as many as is reasonable (if this varies or can be greater
than the DS can handle, you can use %handler to parse portions of the XML
at a time).



DPlist PR Extpgm('program')

D Parm_XML 31000

*

DPlist PI

D Parm_XML 31000



D XML_in ds Qualified

D row likeDS(rowDS) dim(2500)

.

.

.

D rowDs ds qualified based(only_a_template)

D field1 10

D field2 3 0

D field3 17

.

.



Then use the XML-INTO verb to parse the data from the XML input parameter
into the DS you defined.



XML-INTO(E) xml_in %xml(Parm_xml:'allowmissing=yes allowextra=yes
case=any');



Then just process the row ds as you normally would any other qualified ds.



Performance is surprisingly good in our interactive web environment...your
results may vary, blah, blah, blah...:-)



Good luck!



BTW - this info is all in IBM's RPG manuals too.



Steve Needles





-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of RPGLIST
Sent: Thursday, August 22, 2013 9:20 AM
To: rpg400-l@xxxxxxxxxxxx
Subject: using a DS with a stored procedure



I'm looking at using a stored procedure (which references an existing
RPGLE program) for connecting to an external process. I would need to be
able to send multiple rows.



We have a windows app that would call a stored procedure and pass it
approximately 59 fields of data, but it can contain up to 99 rows of data.



Is this even possible? I was thinking of just defining the full length of
the data structure and using that as a clob field or something along that
lines but it doesn't sound very efficient.



Websphere and a web service is not an option, the owner flat out shot down
spending the money for that. So I'm back to square one.



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