it would appear the query to read back constraint information is:
SELECT
ac.constraint_name,
ac.constraint_type,
LOWER(loc.column_name) AS local_column,
LOWER(rem.table_name) AS remote_table,
LOWER(rem.column_name) AS remote_column,
LOWER(rem.owner) AS remote_owner
FROM all_constraints%(dblink)s ac,
all_cons_columns%(dblink)s loc,
all_cons_columns%(dblink)s rem
WHERE ac.table_name = :table_name
AND ac.constraint_type IN ('R','P')
AND ac.owner = :owner
AND ac.owner = loc.owner
AND ac.constraint_name = loc.constraint_name
AND ac.r_owner = rem.owner(+)
AND ac.r_constraint_name = rem.constraint_name(+)
-- order multiple primary keys correctly
ORDER BY ac.constraint_name, loc.position, rem.position
so...theres your lower case.
On Mar 20, 2007, at 4:38 PM, vkuznet wrote:
>
> Hi,
> I have a dump question about naming conventions for foreign keys.
>
> Using ORACLE as back-end all table names are in capital letters. So
> Table object looks like:
> Table('BRANCH',DynamicMetaData(),Column('id',OracleInteger
> (),primary_key=True,nullable=False),
> Column('name',OracleString(length=500),nullable=False),
> Column('lastmodifiedby',OracleInteger(),
> ForeignKey('person.id')),
> Column('lastmodificationdate',OracleTimestamp(timezone=False),
> default=PassiveDefault(<sqlalchemy.sql._TextClause object at
> 0xb6b142ac>)),
> Column('creationdate',OracleTimestamp(timezone=False),
> default=PassiveDefault(<sqlalchemy.sql._TextClause object at
> 0xb6b1430c>)),
> Column('createdby',OracleInteger(),ForeignKey
> ('person.id')),schema=None)
>
> The question is why Foreign key is in lower case, since the table
> "person" name is actually in capital
> Table('PERSON',DynamicMetaData()....)
>
> Thanks,
> Valentin.
>
>
> >
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