RE: Using RRN 0 to do Setll on arrival sequence file

But...

"The SETLL operation positions a file at the next record that has a key
or relative record number that is greater than or equal to the search
argument (key or relative record number) operand specified
(search-arg)."

If 0 is accepted as a valid rrn search argument, then reading the above
one could expect that setll with rrn = 0, would position before rrn = 1.

As I understand it, the above is the basis of Lim's question.

Personally, I think a run time error should have been thrown.

Barbara must not be around today, it'd be interesting to hear what she
has to say about this behavior.

We'll that enough of the Friday debates of how many angels can dance on
the dead of a pin for me.

I'm going home.  Hope everybody has a good weekend!


Charles Wilt
--
iSeries Systems Administrator / Developer
Mitsubishi Electric Automotive America
ph: 513-573-4343
fax: 513-398-1121
  

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx 
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Kurt Anderson
Sent: Friday, October 20, 2006 3:24 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: Using RRN 0 to do Setll on arrival sequence file

Ok, 

"If the SETLL operation is not successful (no records found 
condition),
the file is positioned to the end of the file."

SetLL 0 finds no record, as there is no such thing, so the file is
positioned to EoF.

In a file where the first RRN is 2, SetLL 1 positions to the 
deleted RRN
1 record, not to EOF.  (I'm guessing it positions to the 
deleted record,
though I know it doesn't position to EoF.)


SetGT 0 will accomplish, Lim, what you're looking to do with SetLL 0.

Kurt Anderson
Application Developer
Highsmith Inc

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Alan Shore
Sent: Friday, October 20, 2006 2:06 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: Using RRN 0 to do Setll on arrival sequence file

Lim - the simple answer is that 0 (zero) is NOT a relative record
number, so how can it position.



Alan Shore

NBTY, Inc
(631) 244-2000 ext. 5019
AShore@xxxxxxxx

rpg400-l-bounces@xxxxxxxxxxxx wrote on 10/20/2006 02:47:31 PM:

Read will fail after setll with rrn 0, which take us back to the 
original question of why would setll with rrn 0 set the 

cursor to end 

of file.  It should set to the beginning of file according to setll 
documentation.


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Wilt, Charles
Sent: Friday, October 20, 2006 1:36 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: Using RRN 0 to do Setll on arrival sequence file

Ah, but did you try doing a read after the setll with 0?

It'd be interesting if the read works.

Charles Wilt
--
iSeries Systems Administrator / Developer Mitsubishi Electric 
Automotive America
ph: 513-573-4343
fax: 513-398-1121

-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Lim Hock-Chai
Sent: Friday, October 20, 2006 2:24 PM
To: RPG programming on the AS400 / iSeries
Subject: RE: Using RRN 0 to do Setll on arrival sequence file

Uummm.
For a non empty file, READ will be successful when cursor 

is at BOF.

READ will failed when cursor is at EOF.  The opposite applies for 
READP.
So, for me, technically, they are not the same.


-----Original Message-----
From: rpg400-l-bounces@xxxxxxxxxxxx
[mailto:rpg400-l-bounces@xxxxxxxxxxxx] On Behalf Of Bob P. Roche

<clip> technically the begiining of the file is and "end of file" 
You can set on EOF from READP also.
</clip>

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