× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.



I should really keep track of all the RPG functions that the SQL pre-compiler does not support. When I get a host variable not usable message, I tend to go through a number of iterations to finally end up with a variable that will work.

A couple things I am aware of:
Host arrays can't have a dimension that's defined by a constant "variable." Meaning Dim(10) will work, but Dim(MAX_ELEMENTS) will not work if MAX_ELEMENTS is defined as a constant. I think it'll work if defined as a variable, but I can't remember for sure.
Host variables/structures cannot be defined LIKE a Template variable/structure (I might be leaping in logic here, the Templates I deal with are all qualified data structures, so it could be that the Template limitation has to do with qualified DS's only).
Host structures cannot be defined using LIKEREC. I've had to use ExtName instead. (The SQL police might show up and say "Don't do Select *!" but I do this in file encapsulated service programs to load a global data structure array that all of the Gets and Sets access.

Someone can correct me if I'm wrong on any of these. Or add to them.

-Kurt Anderson

-----Original Message-----
From: midrange-l-bounces@xxxxxxxxxxxx [mailto:midrange-l-bounces@xxxxxxxxxxxx] On Behalf Of Michael Ryan
Sent: Thursday, November 08, 2012 10:21 AM
To: Midrange Systems Technical Discussion
Subject: Re: Embedded SQL Dynamic Selection

Hi Bob...yup, the MODS WkInvMstP is defined in the D specs, well before any of the SQL statements. Thanks.


On Thu, Nov 8, 2012 at 10:28 AM, Bob P. Roche <BRoche@xxxxxxxxxxxxxxxxx>wrote:

Make sure your variable is defined earlier in your code than the
placement of the SQL statement. Actually earlier in the code listing,
the fact that you program may hit the definition first while running
does not make a difference. Of course all your variables are defined
in the D specs so this may not be the issue.




From:
Michael Ryan <michaelrtr@xxxxxxxxx>
To:
Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>,
Date:
11/08/2012 09:15 AM
Subject:
Re: Embedded SQL Dynamic Selection
Sent by:
midrange-l-bounces@xxxxxxxxxxxx



Thanks for looking at this Birgitta. I 'fat fingered' the error
message...it's SQL5011:

SQL5011: Position 55 Host structure array WKINVMSTP not defined or not
usable

on this statement:

Fetch Next From C1 For :Maxrows Rows Into :Wkinvmstp;

Thanks!


On Thu, Nov 8, 2012 at 9:59 AM, Birgitta Hauser
<Hauser@xxxxxxxxxxxxxxx>wrote:

Error Message means SQL0511 - Not allowed for update.
Multiple row fetches cannot be used if you want to update your table
directly using a cursor and specify the WHERE CURRENT OF Clause in
the update statement.

The error message has nothing to do with static and dynamic SQL or
using
host variables or parameter markers.
Multiple row fetches are also not allowed for dynamic SQL with Update.

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 Michael Ryan
Gesendet: Thursday, 08.11 2012 15:21
An: Midrange Systems Technical Discussion
Betreff: Embedded SQL Dynamic Selection

So folks...sorry to be a pest...but is the reason I'm getting an
SQL5011
on
this statement:

Fetch C1 For :Maxrows Rows Into :Wkinvmstp;

Is because my Declare looks like this:

Exec SQL
DECLARE C1 CURSOR FOR
Select * From INVMSTP
Where Imvnda Between :HostFld1 And :HostFld2 And ...
(a long statement)

and it needs to be parameter markers instead of host variables in
the
WHERE
clause?
--
This is the Midrange Systems Technical Discussion (MIDRANGE-L)
mailing
list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please
take a moment to review the archives at http://archive.midrange.com/midrange-l.


--
This is the Midrange Systems Technical Discussion (MIDRANGE-L)
mailing
list
To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please
take a moment to review the archives at
http://archive.midrange.com/midrange-l.


--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take
a moment to review the archives at
http://archive.midrange.com/midrange-l.



--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing
list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take
a moment to review the archives at
http://archive.midrange.com/midrange-l.


--
This is the Midrange Systems Technical Discussion (MIDRANGE-L) mailing list To post a message email: MIDRANGE-L@xxxxxxxxxxxx To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/midrange-l
or email: MIDRANGE-L-request@xxxxxxxxxxxx Before posting, please take a moment to review the archives at http://archive.midrange.com/midrange-l.


As an Amazon Associate we earn from qualifying purchases.

This thread ...

Follow-Ups:
Replies:

Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.