Travis Kriplean ha scritto:
However, this seems a bit ugly. Is there a way to obtain a non-
transactional connection from an engine in 0.3.10? If not, is it
possible in 0.4?
I use this with SA 0.3.10 and Postgres:
Hello, here is a sample:
children_table = Table('children', metadata,
Column('id', Integer, primary_key=True))
child2group_table = Table('child2group', metadata,
Column('child_id', Integer,
ForeignKey('children.id'),
Hi,
this issue (#759) seems fixed with the SA0.4b5. Thanks, Michael.
One additional question concerning last_inserted_ids() - is it
supposed to work below:
...
isql = Insert( table_Manager, values= {'name':bindparam('name'),
'duties':bindparam('duties
r2 = con.execute( isql, [
I have read about hibernate's shard
strategyhttp://www.hibernate.org/hib_docs/shards/reference/en/html/shards-shardstrategy.html
,
and sqlalchemy's shard implementation.
which remind me of a system in my company which implemented similar
function,
but both hibernate and sqlalchemy only separate
On Sep 3, 2007, at 4:38 AM, che wrote:
Hi,
this issue (#759) seems fixed with the SA0.4b5. Thanks, Michael.
One additional question concerning last_inserted_ids() - is it
supposed to work below:
...
isql = Insert( table_Manager, values= {'name':bindparam('name'),
i think multiple tables within one database is not that common since
you get all the downside of a sharded approach but not so much of the
performance enhancement of moving the load over to a new server.
also a lot of DBAs would be skeptical that one big table is so much
slower than
Excuse the newbie question, how does one declare a sef-referencing
key? I would like to have fields modified_by and created_by in my
users table, the field should refer back to the user id or user name
in the same table.
Thanks
--~--~-~--~~~---~--~~
You received
would this work?
users = Table(users, metadata,
Column(id,Integer,primary_key=True),
Column(username, String(50),unique=True,
nullable=False),
Column(password, String(255)),
Column(email, String(255),unique=True,
nullable=False),
On Monday 03 September 2007 19:57:54 voltron wrote:
would this work?
users = Table(users, metadata,
Column(id,Integer,primary_key=True),
Column(username, String(50),unique=True,
nullable=False),
Column(password, String(255)),
Column(email,
The following line:
r = cnnctn.execute(insert(t),
{'xkey': 'k1','yval':1},
{'xkey': 'k2','yval':2},
{'xkey': 'k3'})
Cause the following :
INSERT INTO `A` (xkey, yval) VALUES (%s, %s)
[['k1', 1], ['k2', 2], ['k3', 1]]
i.e. the unspecified value in the
A pointing to A, is cyclical dependency.
same as A - B - A.
but in latter case u must choose one of the links to be added later,
that is use_later=True for ForeignKey.
in former case the table declaration may or may not work without
use_alter.
in both cases u need post_update=True for the
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