Re: Get Record Creation Date

True enough - and remember that I did comment on the need to purge journal information - and I agree that a trigger can be less complex, as you mention below, and it can be more specific to certain fields.

It does seem the OP is not able to use either solution - what a sorry situation William is in!

Sigh!

Vern

On 1/6/2014 1:10 PM, Henrik Rützou wrote:

Vernon

if you create a table szed 10 TB and you journal it that must mean 10 TB
extra


On Mon, Jan 6, 2014 at 8:07 PM, Vernon Hamberg <vhamberg@xxxxxxxxxxxxxxx>wrote:

Dieter - I don't believe I compared performance between the 2 options -
I said that journaling performance is no longer the problem it used to
be 25 years ago, when many people rejected journaling for that reason.

As to triggers, there is a potential for a performance problem, due to
the synchronous nature of calling triggers.

NOTE - these are mutually exclusive - they have nothing to do with one
another.

So there was nothing where I replicated myths. Done! and Done!

Vern

On 1/6/2014 12:27 PM, D*B wrote:

@Vernon:
replicating myths about performance, without verification is part of the

problem William (and others) have!!!

Comparing journaling with a trigger, writing a record (something like a

shortened trigger image):

- read operations: no diffrence to the same operation with none of these
- insert operations: journal will outperform the trigger by far!!! it's

a low level operation

- update/delete operations: the trigger might be better (has to be

evaluated), if it is not fired for this operation. If you would need
triggers for this too: journal will outperform triggers by far!!!

D*B

--
This is the RPG programming on the IBM i (AS/400 and iSeries) (RPG400-L)
mailing list
To post a message email: RPG400-L@xxxxxxxxxxxx
To subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/rpg400-l
or email: RPG400-L-request@xxxxxxxxxxxx
Before posting, please take a moment to review the archives
at http://archive.midrange.com/rpg400-l.