Oracle Rdb and recompile requirements

[Penney, John]

Thanks, Bob: Over a month, eh? Well, don't be s stranger I think I said before!
 
It's OpenVMS Rdb - old version 7.1 to be sure, PH 7.10... so not the really old VMS RDBMS certainly.
 
Well, my thoughts are that it don't matter as they say in the vernacular, seeing as all Rdb access is done under the sheets.

But I have also gotten a couple of 'hey, old school, re-compile' posts. I'll let you all know how it turns out and again, Thanks! to all who responded.

John M Penney
1532 Fern Street SW
Olympia, WA   98502
(360)789-8159

 

________________________________
 From: Robert Deskin <bob.deskin at me.com>
To: "Penney, John" <resolutebay at yahoo.com> 
Cc: power-l <powerh-l at lists.sowder.com> 
Sent: Sunday, August 25, 2013 5:43 PM
Subject: Re: Oracle Rdb and recompile requirements
  


It may matter how you declared the database in the dictionary. Are you using the native interface or the SQL interface. 

If you used RDB, then it's the SQL interface and I wouldn't expect it to matter. That's because PowerHouse generates SQL based on the structure at the time, but it's the database that decides which indices to use. In other words, there's no PowerHouse use of relational database indexes at execution time.

On the other hand, if you used RDB/VMS, I really don't know. It's quite possible that the routines used at execution time are based on the structure known at compile time. 

That's my recollection. Remember I've been away from this stuff for over a month.

Cheers

Bob


On 2013-08-20, at 4:10 PM, "Penney, John" <resolutebay at yahoo.com> wrote:

Good Afternoon, PH Listers:
> 
>We've made a change to a table, removing a repeating key and the question was raised "Do we have to recompile all the programs that access that table?". My opinion and several others was "No...". We've had an enqueue and quota anomaly and I'm questioning whether our previous recompile asssumption was in fact correct?
> 
>Can anyone please share?
> 
>env:    QDESIGN710G VT320
> 
>Rdb: Rdb/Dispatch V7.0-65 (OpenVMS AXP)
> 
>and some kind of big HP Alpha (AKA DEC/VAX) server....openvms ver: OpenVMS V7.1-2 
> 
>Yes, i realize some of this stuff is neanderthal...
> 
>Thanks a bunch!John M Penney
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