[Tutor] "Object designer" applications - are there any?

Flynn, Stephen (L & P - IT) Steve.Flynn at capita.co.uk
Fri Aug 5 14:40:05 CEST 2011

I'll certainly give it a look-see - thanks Christian


I'm going to end up writing converters anyway, as at some point I'm
going to be given (for example) a COBOL copybook for a file and have to
translate that into an Oracle table version (actually I already have
tools to do this, but if I'm going to be learning python via a project,
I might as well do it properly).






From: Christian Witts [mailto:cwitts at compuscan.co.za] 
Sent: Friday, August 05, 2011 1:10 PM
To: Flynn, Stephen (L & P - IT)
Cc: Tutor List
Subject: Re: [Tutor] "Object designer" applications - are there any?


On 2011/08/05 01:01 PM, Flynn, Stephen (L & P - IT) wrote: 

It struck me that if I write a "read in Sybase DDL and spit out Oracle
DDL" routine and so forth, I'd get a lot of reuse out of it. However,
I've not done much OOP at all and consequently, my object design skills
are somewhat non-existent. Whilst I have a rough idea of what my
properties my "table" object will have I was looking for something to
help me design it - something which I can say "this is a table object,
it has a name and multiple columns. Columns have a type, a width (which
may be further comprised of scale and precision or just an integer
depending on the column type) and a "nullable" flag.). Oh, and there may
be multiple columns... so maybe a column should be an object too... etc.
Anyone know if there are any such kinds of programs out there already
(freeware please - I'll be doing this off my own back so funds are tight
for commercial software). Failing that, does anyone use something for
this kind of thing already, Visio maybe or a spreadsheet. Maybe just
notepad or a post-it?

You could take a look at SQLAlchemy [1] and possibly the migrate [2]
portion of it for schema management. It supports connectivity for both
Sybase and Oracle as well as being able to generate the DDL [3]

[1] http://www.sqlalchemy.org/docs/


Christian Witts
Python Developer


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