How to link foreign keys & primary keys using python?
harry.g.george at boeing.com
Fri Jun 9 08:52:04 CEST 2006
"sonal" <sonaldgr8 at gmail.com> writes:
> Hi all,
> I hv started with python just recently... and have been assigned to
> make an utility which would be used for data validations...
> plz help me... till get my hands on python... :)
1. This sure looks like a school assignment.
2. "till get my..." Do you actually not have python installed yet? It
is hopeless to tackle this problem if you haven't done a few simple
"hello, world" tasks.
3. Do you have a data model? In this case, you need to think
carefully about what a RDBMS, PK, and FK are. In otherwords, a
metamodel. Generally, once you understand the data structures you
should implement them pretty much verbatim in a "model" module.
Then do reader/writer modules so you can load that model from your
data sources and dump out to your data sinks.
4. Do you have a testsuite and test harness? Put together your test
harness, then develop for the simplest case, then add complexity.
E.g., no FK, FK with 1 attr, FK with multiple attrs, FKs with
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