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AW: Moving Tables with productive data to an other schema/library



fixed

Well, if you do a MONITOR on a write, and retrieve the generic message
from your joblog and display that I can see that being rather confusing.
Normally the user should not see those messages at ALL!
The programmer is responsible that no constraint violation occurs. ... and
if he should have discovered it when testing his program.
... and users already sometimes call for error messages that are much more
comprehensible or complain that they cannot enter what they want.

in German and market it to the English speaking market
Or I'd run the German message text through babble fish (or any other
translation tool) :)

Mit freundlichen Grüßen / Best regards

Birgitta Hauser

"Shoot for the moon, even if you miss, you'll land among the stars." (Les
Brown)
"If you think education is expensive, try ignorance." (Derek Bok)
"What is worse than training your staff and losing them? Not training them
and keeping them!"

-----Ursprüngliche Nachricht-----
Von: midrange-l-bounces@xxxxxxxxxxxx
[mailto:midrange-l-bounces@xxxxxxxxxxxx] Im Auftrag von rob@xxxxxxxxx
Gesendet: Friday, 07.6 2013 17:37
An: Midrange Systems Technical Discussion
Betreff: Re: Moving Tables with productive data to an other schema/library

<snip>
Also (according to my manager): "Those techniques are useless especially
because error messages are sent, that an user cannot understand."
</snip>
Well, if you do a MONITOR on a write, and retrieve the generic message from
your joblog and display that I can see that being rather confusing.
Especially if you create a constraint and let the system name it. Or, if
you create a constraint in German and market it to the English speaking
market.


Rob Berendt
--
IBM Certified System Administrator - IBM i 6.1 Group Dekko Dept 1600 Mail
to: 2505 Dekko Drive
Garrett, IN 46738
Ship to: Dock 108
6928N 400E
Kendallville, IN 46755
http://www.dekko.com





From: "Birgitta Hauser" <Hauser@xxxxxxxxxxxxxxx>
To: "'Midrange Systems Technical Discussion'"
<midrange-l@xxxxxxxxxxxx>,
Date: 06/07/2013 04:24 AM
Subject: Moving Tables with productive data to an other
schema/library
Sent by: midrange-l-bounces@xxxxxxxxxxxx



Let me explain first:

Around 3 years ago I wrote an application with new tables. All these
tables
are created with DDL, Identity Columns are used in all tables. Primary Key
Constraints are created over these identity columns. Referential
integrities
are defined (based on these identity columns). Additional triggers are
added. All to keep data consistent. Additionally a bulk of views was
created
to move as much business logic into data base as possible. Most of these
views join the newly created tables with existing ones (mostly) within the
same schema but also with tables in other schemas.

Yesterday my manager came up: the tables (and dependent objects) for
this
application must be moved into a different schema.
Unfortunately both schemas contain a lot of other objects, so save the
library and restore it with a different name is not possible.
... and unfortunately the second schema is also in the library list but
AFTER the first one where my tables are located currently.

What's the easiest way to get those tables moved?

What I've done so far is to generate an SQL script containing all the
creation statements for my tables and dependent objects, in the sequence I
need to create the objects (Tables first with identity columns GENERATE BY
DEFAULT without constraints and triggers, then copy data, change identity
columns back to GENERATE ALWAYS and RESTART WITH the next Id, then
creating
all constraints, views, indexes). I' currently testing whether all objects
will be generated and copied correctly.
... and finally I'll rename all existing objects before deleting them
after
having tested it.

Is there a better way?

BTW according to my manager this morning:
1. "It is normal to move productive data from one schema to another one"
(may be for test issues OK, but NOT productive data!)
2. "There are thousands of applications outside that work well without
Identities, Referential Integrities, triggers and commitment control."
"Why are you so arrogant to think you know it better!"
Also (according to my manager): "Those techniques are useless
especially
because error messages are sent, that an user cannot understand."

Mit freundlichen Grüßen / Best regards

Birgitta Hauser

"Shoot for the moon, even if you miss, you'll land among the stars." (Les
Brown)
"If you think education is expensive, try ignorance." (Derek Bok)
"What is worse than training your staff and losing them? Not training them
and keeping them!"






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