Re: SQL Result Paging

The question is the connection. Do you open and close connection to the
AS/400 with every call? If you maintain the connection between calls, then
you have state because it is running in a single job on the iSeries until
the connection is closed.

The other way to do this in a stored procedure is to use the fetch multiple
rows. That is extremely fast. On the first page you only fetch the first
less say 25 records and return them. On the next page you fetch 50 records
and return only the last 25. Each page you fetch more but because you are
using fetch multiple rows you would probably never even notice it and they
would already be cached.


On Mon, Mar 11, 2013 at 1:59 PM, Mike Wills <mike@xxxxxxxxxxxx> wrote:

We don't maintain state and I am not sure how I could in .NET if
our architecture would allow it.

--
Mike Wills
http://mikewills.me


On Mon, Mar 11, 2013 at 2:57 PM, Nathan Andelin <nandelin@xxxxxxxxx>
wrote:

A stored procedure maintains state ...

That works IF the client maintains a persistent connection. I once worked
with a group Java developers who vowed that they would never use

persistent

connections. Later they caved in and implemented "stateful" connections

to

QZDASOINIT jobs in order to implement paging and offer better

performance.

Frankly, I think IBM i handles stateful connections well, so this sounds
like a good solution.

-Nathan

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