Re: MySQL and DB2 storage engine for IBM i

[BMay@xxxxxxxxx]

I got as far as creating a process to make it happen.  My only issue is 
that the storage engine does not support zoned decimal numeric fields, 
only packed.  This can obviously be a big problem when exposing existing 
tables.  I am currently trying to work out a way around this limitation. 
If someone has the need to do this and the zoned decimal problem does not 
apply to your situation, I would be glad to help them do it.

Brian May
Project Lead
Management Information Systems
Garan, Incorporated
Starkville, Mississippi



Vern Hamberg <vhamberg@xxxxxxxxxxx> 
Sent by: web400-bounces@xxxxxxxxxxxx
12/18/2010 10:12 PM
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Web Enabling the AS400 / iSeries <web400@xxxxxxxxxxxx>


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Re: [WEB400] MySQL and DB2 storage engine for IBM i






You can run mySql on i - have been able to do so for a long time now. 
The storage engine is just a way to use the i database as the place the 
data is stored. Yes, it originally was uni-directional, but Brian May, 
who posts in these lists, was working on enabling the use of 
pre-existing iSeries tables or files. Not sure where he got with that.

But there's no reason to abandon the use of mySql on i, so far as I can 
see, only, perhaps, the storage engine. The other storage engines are 
all still there in mySql, right?

This means now that RPG developers would have to use JDBC or something 
like my open access handler to work with mySql data - no big deal!

Right?

Vern

On 12/18/2010 8:14 PM, Mark Murphy/STAR BASE Consulting Inc. wrote:
> The DB2 engine on i was never more than a half baked attempt to link 
MySql to DB2.  You can not use existing tables with MySql, nor can you use 
tables defined with DDS or SQL/400.  They have to be defined through 
MySql.  Granted there isn't a DB2 for i storage engine for Postgres, but 
you really aren't loosing all that much as long as you can get it to work 
in PASE.  If Oracle is going to try to make MySQL just a stepping stone to 
Oracle DB, then they will never allow it to become fully featured for DB2, 
and they may even take away some existing features, or avoid adding 
features in the future.  Hey, Oracle has not proven to be a strong open 
source supporter.
> Mark Murphy
> STAR BASE Consulting, Inc.
> mmurphy@xxxxxxxxxxxxxxx
>
> -----web400-bounces@xxxxxxxxxxxx wrote: -----
> To: Web Enabling the AS400 / iSeries<web400@xxxxxxxxxxxx>
> From: Vern Hamberg
> Sent by: web400-bounces@xxxxxxxxxxxx
> Date: 12/18/2010 05:01PM
> Subject: Re: [WEB400] MySQL and DB2 storage engine for IBM i
>
> Good question - the DB2 engine on i for mySql was just that - a way to
> store data defined in mySql in a different way. Postgresql is
> self-contained, so far as I know. Does it have plugins for storage
> engines that are similar to what mySql has? If not, there's no reason to
> go with it. The mySql effort seems related to PHP, et al. The engine
> made is possible to read mySql data in native programs. Again, no
> similar purpose exists with any other RDBMS that I'm aware of.
>
> Regards
> Vern
>
> On 12/18/2010 2:21 PM, Thorbjoern Ravn Andersen wrote:
> > -snip-
> Why would you choose PostgreSQL instead of DB2/400 which works out of
> > the box?
> >
> > /Thorbjørn