Re: As much as I hate showing my own stupidity more than once a day(I am flat out stuck) Embedded SQL -- RPG400-L

Doug,

Just to clear up ... It doesn't matter if your physical file doesn't have
any null values. If your WHERE clause returns 0 rows then the sum of 0 rows
is NULL.

On 8/1/07, Doug Palme <dpalme@xxxxxxxxxxx> wrote:

Well I actually checked the PF where the data is coming from and there are
no null values for the extended amount.....and there should never be a
null
value returned, so something else is amiss......I am concerned that
handling
nulls this way, will inadvertently mask a potential problem that needs to
be
addressed....

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx [mailto:rpg400-l-bounces@xxxxxxxxxxxx]
On Behalf Of Milan Zdimal
Sent: Wednesday, August 01, 2007 4:06 PM
To: RPG programming on the AS400 / iSeries
Subject: Re: As much as I hate showing my own stupidity more than once a
day(I am flat out stuck) Embedded SQL

Told handle a null value just do.

1. Define an int like this in your program
D MYNULL S 5I 0 INZ(-1)
2.
SELECT SUM(SLEXT$) INTO :ZSUM:MYNULL
FROM SLSTRNL5
WHERE SLACCT= :CUSTNO
AND SLTDAT > :ZBDATEN
AND SLTDAT <= :ZEDATEN
AND SLCLAS > 1
AND SLSHRT = ' '

Should do it.

On 8/1/07, Michael_Schutte@xxxxxxxxxxxx <Michael_Schutte@xxxxxxxxxxxx>
wrote:

No, but it would remove the unnecessary cursor, opens and fetchs.

Michael Schutte
Admin Professional
"The Secret's the Sauce! Enjoy our new Bob-B-Q Pulled Pork Knife & Fork
Sandwich!"

rpg400-l-bounces@xxxxxxxxxxxx wrote on 08/01/2007 04:55:25 PM:

Would that explain the error code of -305?

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx

[mailto:rpg400-l-bounces@xxxxxxxxxxxx]

On Behalf Of Michael_Schutte@xxxxxxxxxxxx
Sent: Wednesday, August 01, 2007 3:50 PM
To: RPG programming on the AS400 / iSeries
Subject: Re: As much as I hate showing my own stupidity more than once

a

day

(I am flat out stuck) Embedded SQL

Doug, you are doing a sum with no group by... so a cursor is not

needed

because only one result will be returned. You should simply say

SELECT SUM(SLEXT$) FROM SLSTRNL5
INTO :ZSUM
WHERE SLACCT= :CUSTNO
AND SLTDAT > :ZBDATEN
AND SLTDAT <= :ZEDATEN
AND SLCLAS > 1
AND SLSHRT = ' '

Michael Schutte
Admin Professional
Bob Evans Farms, Inc.
"The Secret's the Sauce! Enjoy our new Bob-B-Q Pulled Pork Knife &

Fork

Sandwich!"

rpg400-l-bounces@xxxxxxxxxxxx wrote on 08/01/2007 04:44:38 PM:

I am reading a file and using the values within that file to create

an

SQL

that will go out and select a sum of sales figures for a particular
customer.

Here is the relevant SQL code:

C*---Prepare SQL Statement

C/EXEC SQL

C+ DECLARE C1 CURSOR FOR

C+ SELECT SUM(SLEXT$) FROM SLSTRNL5

C+ WHERE SLACCT= :CUSTNO

C+ AND SLTDAT > :ZBDATEN

C+ AND SLTDAT <= :ZEDATEN

C+ AND SLCLAS > 1

C+ AND SLSHRT = ' '

C/END-EXEC

I then open the cursor with the following:

C*---Open the Cursor

C/EXEC SQL

C+ OPEN C1

C/END-EXEC

I then am running a fetch statement with the following:

C*---Fetch the Result and place into Variable

C/EXEC SQL

C+ FETCH C1 INTO :ZSUM

C/END-EXEC

ZSUM is defined as an 9,2 on the D spec

Everything so far, at least to my eyes looks good...

However before I process that ZSUM data (output to a report) I check

the

SQLCOD and I am getting a return code of -305..I have checked the

variables

that I am passing in, such as CUSTNO (defined on the D SPEC

correctly),

ZBDATEN and ZEDATEN are also defined on the D SPEC correctly...so I

have

no

clue what variable the system is balking at.

Any assistance would be appreciated.

Douglas

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