Oracle FAQ Your Portal to the Oracle Knowledge Grid
HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US
 

Home -> Community -> Usenet -> comp.databases.theory -> Re: The wisdom of the object mentors (Was: Searching OO Associations with RDBMS Persistence Models)

Re: The wisdom of the object mentors (Was: Searching OO Associations with RDBMS Persistence Models)

From: Robert Martin <unclebob_at_objectmentor.com>
Date: Tue, 20 Jun 2006 14:27:47 -0400
Message-ID: <2006062014274758821-unclebob@objectmentorcom>


On 2006-06-13 11:55:22 -0400, frebe73_at_gmail.com said:

> Both schema and application changes all the time (called versions). But
> as long as you can not produce one single resonable example of a schema
> change that will not change any part of the application outside the
> "persistence" layer, it is a little bit difficult to understand why I
> should partion my application from the SQL statements.

Adding the birthdate column to an employee record should have no effect on the modules that calculate his pay.

-- 
Robert C. Martin (Uncle Bob)  | email: unclebob_at_objectmentor.com
Object Mentor Inc.            | blog:  www.butunclebob.com
The Agile Transition Experts  | web:   www.objectmentor.com
800-338-6716                  |
Received on Tue Jun 20 2006 - 13:27:47 CDT

Original text of this message

HOME | ASK QUESTION | ADD INFO | SEARCH | E-MAIL US