Changes between Version 12 and Version 13 of SchemaEvolution

Timestamp:

May 12, 2006, 11:06:19 AM (20 years ago)

Author:

martin maney

Comment:

refactoring suggestion

SchemaEvolution

@@ -288 +288 @@
 .. _SchemaEvolutionProposal: http://code.djangoproject.com/wiki/SchemaEvolutionProposal
 
+
+Something Completely Different
+------------------------------
+
+I'd like to suggest a different approach altogether.
+This is, I think, orthoganol to the version management part of the existing proposals.
+Call this the DatabaseRefactoring view of schema evolution.
+For background, let me suggest a few starting points:
+
+ * Fowler and Sadalage's paper `EvolutionaryDatabaseDesign`_
+ * `TheProcessOfDatabaseRefactoring`_ from Scott Ambler's agiledata site, which leads to the online catalog of refactorings
+ * and of course there's Ambler and Sandalage's book, `RefactoringDatabases`_
+
+I think there are several important advantages to this approach as compared to the one already suggested.
+For one thing, the smaller steps it takes are likely to be much more automatable.
+Sure, in some cases you'll have to write conversion code, but a lot of changes shouldn't require this.
+If you're evolving your application by (in part) refactorings, then there's an obviously good match (object refactorings map to database refactorings).
+
+.. _EvolutionaryDatabaseDesign: http://www.martinfowler.com/articles/evodb.html
+.. _TheProcessOfDatabaseRefactoring: http://www.agiledata.org/essays/databaseRefactoring.html
+.. _RefactoringDatabases: http://www.bookpool.com/sm/0321293533
 }}}