Thanks Michael, that works neatly. - Bruce
On Fri, Sep 19, 2008 at 12:03 AM, Michael Bayer <[EMAIL PROTECTED]>wrote: > > On Sep 18, 2008, at 8:06 AM, Bruce Smith wrote: > > Hello > > I have Oracle Express Release 10.2.0.1.0, SQLAlchemy 0.4.5, Python 2.5.2 on > Ubuntu x86 8.04. > > When I go through the ORM tutorial at > http://www.sqlalchemy.org/docs/04/ormtutorial.html it fails at the first > query below the heading *Saving Objects* with an Oracle ORA-01400 error as > follows: > > sqlalchemy.exceptions.DatabaseError: (DatabaseError) ORA-01400: cannot > insert NULL into ("BRUCE"."USERS"."ID") > 'INSERT INTO users (id, name, fullname, password) VALUES (:id, :name, > :fullname, :password)' {'fullname': 'Ed Jones', 'password': 'edspassword', > 'name': 'ed', 'id': None} > > My create_engine string was > engine = sa.create_engine('oracle://bruce:[EMAIL PROTECTED]', echo=True) > > The superficial reason for the error is obvious. Is this an Oracle > eccentricity? Is there a workaround? > > > With Oracle, SQLA needs you to supply a Sequence for each column which > you'd like to have "autoincrementing" behavior - the tutorial assumes all > primary key columns are autoincrementing. SQLA will issue the CREATE > SEQUENCE for you upon table.create(), but you need to just give it a name > (the Oracle crowd, in my experience, appreciates no names of anything being > guessed): > > Column('id', Integer, Sequence('mytable_id_seq'), primary_key=True) > > > > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
