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A coworker is having problems with a stored procedure which uses an RPGIV
program.
In the job log for the job which is servicing the requests from the VB.Net
program, the following error messages are appearing (my notes in
parentheses):
User XXXXXXXXX from client xxx.xx.xxx.xxx connected to server.
Library xxxxxxxxxx added to library list. (data library)
Library yyyyyyyyy added to library list. (object library)
Column WLQMTO not in specified tables. (it is!)
Cursor SOQ not open.
See his email message below...
Best Regards,
Steve
One of our engineers has written software in VB.Net 2008 to support the YYY
Project.
This software requires information from the IBM I so I wrote a stored
procedure that will return the data that he needs. It worked properly back
in September when validation runs on 2 different applications using red
specials where successfully processed in the production environment.
Something has happened between September and now that has caused this issue.
I created the stored procedure using the following command:
Create Procedure QGPL/Proc_AutoMill_Lens_Data
(In Parm1 Char(8))
Result Set 1
Language RPGLE
Not Deterministic
Reads SQL Data
External Name ATM001R
Parameter Style General
The actual SQL that is executed is embedded in an RPG program (ATM001R) and
the following is the statement executed:
Select Substr(WALITM,1,6) As Style,
ConCat(Trim(WAWR03),
Substr(WALITM,8,3))
As Power,
WAUORG As Started,
WAUORG - WLQMTO As Rejects
From F4801
Join
F3112
On WADOCO = WLDOCO
Where WALOTN = :LotNumber
And WLQMTO <> 0
As you can see, it is just a simple Select statement that returns 4 columns.
We are using the .Net Data Provider that comes with iSeries Access for
Windows. Here is an example of the VB code that executes the procedure:
' Set command text for calling the procedure
cmdAS400.CommandText = "Call QGPL.Proc_Automill_Lens_Data(@LotNumber)"
' Set procedure parameters
cmdAS400.DeriveParameters()
cmdAS400.Parameters(0).Value = strLotNumber
' Call the procedure
drAS400 = cmdAS400.ExecuteReader
' Loop through records
Do While drAS400.Read
' Store result set fields
txtStyle.Text = encoding.GetString(drAS400(0))
txtPower.Text = encoding.GetString(drAS400(1))
txtStartQuantity.Text = drAS400(2).ToString
txtRejectQuantity.Text = drAS400(3).ToString
Loop
When executed, Proc_Automill_Lens_Data returns no data in the Production
environment.
However it will return data in any other environment and we have thoroughly
tested that. I have compared all of the objects involved in all of the
environments and they are identical to the very best of our knowledge.
Security granted our service user ID account (XXXXXXXXX) full authority
(just temporarily) to test that this wasn't simply a permissions issue, but
the extra permissions made no difference.
Additionally I used my own credentials and it still returned no data so we
have ruled out permissions as a possibility. For an entire week we have
tried everything we can think of and still we see no reason why this doesn't
work in Production. There must be some kind of constraint in Production
that doesn't exist anywhere else.
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