Not the fairest of test IMHO...

OPEN/CLOSE is expensive, in any performance oriented process, you'd
minimize it by only doing it once in either language.

If what you're interested in is CHAIN vs. SELECT INTO, I'd call both
in a 100,000 iteration loop with random keys.

Charles

On Thu, Apr 5, 2012 at 9:05 AM, Justin Taylor <JUSTIN@xxxxxxxxxxxxx> wrote:
Regarding:
"Based on my experience I believe this is a myth. We have hundreds of
programs doing single I/O operations using SQL and I have yet to see
any real problem. You might do a test and have a few milliseconds
slower but in a real world environment does that really matter?"

I've tested it with a uniquely-keyed DDS-described PF, and I say fact, not myth.  An OPEN/CHAIN/CLOSE=.001 seconds, while a SELECT INTO=.5 seconds.  To me, that matters.
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