RE: RPG SQL and Cursors

... it doesn't help to get microseconds at one end, throwing away
seconds or
even minutes at another end.

True. And it doesn't follow that it therefore makes sense to ignore
microseconds because of the other. I don't know the source of your
objection nor where you perceive seconds or minutes being thrown away, so I
cannot address further.

Dennis Lovelady
http://www.linkedin.com/in/dennislovelady
--
Those who live by the sword get shot by those who don't.

... it doesn't help to get microseconds at one end, throwing away
seconds or
even minutes at another end. Up to now, I've ever succeeded in
optimizing
Job runtimes ...

D*B

--------------------------------------------------
From: "Dennis Lovelady" <iseries@xxxxxxxxxxxx>
Sent: Friday, November 19, 2010 5:14 PM
To: "'RPG programming on the IBM i / System i'" <rpg400-l@xxxxxxxxxxxx>
Subject: RE: RPG SQL and Cursors

That's cute and I look forward to writing such a note a few/several

years

from now.

It's all relative. Microseconds may not matter in your business;

heaven

knows most System i are not exposed to high transaction volumes per

unit

of
time.

If, however, you design your applications to be used by several

thousand

users concurrently, those microseconds shall add up. It will matter.

It

does matter. Of course you have the option of never applying for a

job at

a
place that does that sort of business.

Dennis Lovelady
http://www.linkedin.com/in/dennislovelady
--
Change is inevitable, except from a vending machine.

A little off-topic...

Some years ago Tracy Kidder wrote a wonderful book, "The Soul of a

New

Machine", regarding the efforts of Data General's computer engineers

in

building of their first minicomputers. In that chronicle, of of the
engineers charged with writing the computer's microcode got tired of
working
with oscilloscopes and nanoseconds and, I quote,

*"He went away from the basement and left this note on his terminal:
"I'm
going to a commune in Vermont and will deal with no unit of time
shorter
than a season." "*


Dieter, believe me, I really understand and share your sentiments...

Best Regards,

Luis Rodriguez
IBM Certified Systems Expert - eServer i5 iSeries
--



On Fri, Nov 19, 2010 at 10:43 AM, <dieter.bender@xxxxxxxxxxxx> wrote:

... I wouldn't use a mix of RLA and SQL, but maybe thats a

question

of

flavour and I'm tired of discussions about microseconds.

Dieter

--------------------------------------------------
From: "Aaron Bartell" <aaronbartell@xxxxxxxxx>
Sent: Friday, November 19, 2010 3:40 PM
To: "RPG programming on the IBM i / System i" <rpg400-

l@xxxxxxxxxxxx>

Subject: Re: RPG SQL and Cursors

I use a balance of RLA and SQL. Usually use RLA by default and

only go

to

SQL when it is a better fit (i.e. dynamic sorts, searches,

ranges,

etc).

We
are actively moving our web development (i.e. OpenRPGUI.com)

from

our

V5R3

server to our V6R1 server so I am planning on jumping into free

form

embedded SQL, and on that note...

Are there any well documented (i.e. articles) out there that

show

how a

CRUD
application would use embedded SQL for all file access? I ask

not

because

I
am new to SQL, but because I am not yet convinced of how it's

usage

is

being
described by some in this thread.

I must say that Alan's comments about lessening the compile

burden

is

something I hadn't considered to a great extent until I started

thinking

about it. Certainly better that wrapping file access with

*SRVPGM's

where

the whole record is being passed in/out without applying any

sort

of

business logic. I think this also comes down to having a good

change

management solution that does a lot of the work for you (as it

should).

Aaron Bartell
www.MowYourLawn.com/blog
www.OpenRPGUI.com
www.SoftwareSavesLives.com
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