Re: FW: update files

[DAsmussen@xxxxxxx]

Booth,

In a message dated 1/5/00 9:03:00 PM Eastern Standard Time, 
boothm@earth.goddard.edu writes:

> Is there any way of knowing how "not very efficient" this choice is?  I 
>  know that when I use UP and take off the K in the file spec these programs 
>  are stunningly fast.
>  
>  Does Barbara have any info to share on UP to a sequential file vs. a 
>  roll-your-own-cycle job?

I'm not sure that it's measurable in a meaningful manner.  Cycle is faster 
than a read loop, period.  I've been told on this list that OVRDBF can invoke 
a larger blocking factor than can the automatic blocking factor of UP files, 
but I still find UP to be faster than overriding a file to its' maximum 
blocking factor and performing your own reads.  Perhaps Hans can elaborate?

Problem is, the "cycle" just isn't practical these days unless it's a "quick 
fix" program or will behave as one.  I'm just curious as to why the cycle is 
_STILL_ so much faster than the code most of us have to use...

Curious,

Dean Asmussen
Enterprise Systems Consulting, Inc.
Fuquay-Varina, NC  USA
E-mail:  DAsmussen@aol.com

"The greatest joy in life is doing what others say you cannot do." -- Walter 
Bagehot
+---
| This is the RPG/400 Mailing List!
| To submit a new message, send your mail to RPG400-L@midrange.com.
| To subscribe to this list send email to RPG400-L-SUB@midrange.com.
| To unsubscribe from this list send email to RPG400-L-UNSUB@midrange.com.
| Questions should be directed to the list owner/operator: david@midrange.com
+---