I guess since, I learn it now, EXCEPT is not supported by MySQL...
I guess I'll have to change my query at all...
On Feb 22, 12:57 pm, neurino neur...@gmail.com wrote:
I have now problems with except_ in MySQL: the code that worked flawlessly
in sqlite now causes an error, seems right after
I wrote a simple subclass of Table
class MyTable(Table):
def __init__(self, name, metadata, *args, **kwargs):
super(MyTable, self).__init__(name, metadata, *args, **kwargs)
def select(self,
def select(self, whereclause=None):
return super(MyTable, self).select(self.c.z 1)
You can ignore this method. This error comes with out this method
also.
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Hi everyone, in my script (python 2.6, Oracle10g, cx_oracle 5.0.4,
sqlalchemy 0.6.5) I'm running the following simple query on one of my
tables:
table = Table(my_data_table, metadata, autoload=True)
col = getattr(table.c, my_integer_col)
res = select(func.stdev(col)).execute().fetchone()
where
Table is not meant for subclassing, so you would need to read the source code
to understand these issues. The issue below cannot be reproduced:
from sqlalchemy import *
class MyTable(Table):
def __init__(self, name, metadata, *args, **kwargs):
super(MyTable, self).__init__(name,
Regarding the comma, set NLS_LANG to a locale that uses a decimal point, or use
0.6.6, this behavior is described in the third paragraph at
http://www.sqlalchemy.org/docs/dialects/oracle.html#precision-numerics .
On Feb 22, 2011, at 8:54 AM, Massi wrote:
Hi everyone, in my script (python
On Feb 22, 2011, at 8:30 AM, bool wrote:
select(t) where t is an object of MyTable is giving this error. What
is the solution...
also, I recommend upgrading to a modern release of SQLAlchemy. The above usage
produces this error:
sqlalchemy.exc.ArgumentError: columns argument to select()
Something like this:
stmt = Session.query(model.ViewOpt.id_cu, model.ViewOpt.id_meas) \
.filter(model.ViewOpt.id_view==1).subquery()
query = Session.query(model.Sensor) \
.outerjoin((stmt,
and_(model.Sensor.id_cu==stmt.c.id_cu,
Hi,
I would like to know how to create database with sqlalchemy using the
PostGresql driver, are there a sample or example?
sqlalchemy just only works with database postgresql previous created.
see my code:
import sqlalchemy
from sqlalchemy import create_engine, Table, MetaData, Integer,
thought i'd post the code I came up with for reference:
from sqlalchemy import *
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import relationship, sessionmaker
from sqlalchemy.ext.associationproxy import association_proxy
Base = declarative_base()
def
On Feb 20, 2011, at 10:12 PM, Ryan wrote:
I'm attempting a self-referential mapping on a Client object that includes
these two columns:
id = Column(Integer, primary_key=True)
inviter_id = Column(Integer, ForeignKey('users.id'), nullable=True)
Started here with no luck:
inviter =
Holding open a transaction across several web requests is in general a bad
idea. HTTP is stateless - the requests could be spaced hours apart or not at
all, leaving the transaction hanging open permanently. While the transaction
is open, locks may be held, preventing concurrent activities
calling commit() on every request is fine, as long as you aren't creating
unwanted 'dirty' state inadvertently.Watching your SQL logs could help you
to determine if things are happening that are undesirable.
On Feb 21, 2011, at 3:38 AM, Romy wrote:
Switched to autocommit=False, and
Just noticed that the 0.6.6 docs show a name parameter of subquery(),
but it does not yet seem to be available in 0.6.6. There should be a
note that it can only be used in 0.6.7 or 0.7.
-- Christoph
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sqlalchemy allows you to issue any literal sql statements as text:
http://www.sqlalchemy.org/docs/core/tutorial.html#using-text
On Feb 22, 7:38 am, Toninho Nunes toninhonu...@gmail.com wrote:
Hi,
I would like to know how to create database with sqlalchemy using the
PostGresql driver, are
Even with that autocommit transaction isolation level, you probably
need to commit the create database before you try to add tables to
it.
On Feb 22, 1:45 pm, Toninho Nunes toninhonu...@gmail.com wrote:
Hi see my source code below
import sqlalchemy
import psycopg2
from sqlalchemy import
this has been fixed in 0.7, however it is completely a mystery how the change
got in there, and it doesn't have test coverage. I'm thinking perhaps
someone on IRC handed me a patch or something and I forgot it was there since
it was committed along with something not really related:
On Feb 22, 2011, at 9:03 PM, Ryan McKillen wrote:
Mike, thanks a lot. Big help. I'm almost there.
This seems to do the trick:
usersid = Column(Integer, primary_key=True, key='id')
inviter_id = Column(Integer, ForeignKey('users.id'))
inviter = relationship('User',
Setting an autocommit setting on a single raw_connection() won't work also
because that's just one connection out of several in the pool. The operation
should be performed on a Connection:
c = engine.connect()
c.detach() # so it is never returned to the pool, since we're changing settings
I added that in because without it I get:
TypeError: Incompatible collection type: User is not list-like
On Tue, Feb 22, 2011 at 6:47 PM, Michael Bayer mike...@zzzcomputing.comwrote:
On Feb 22, 2011, at 9:03 PM, Ryan McKillen wrote:
Mike, thanks a lot. Big help. I'm almost there.
This
one side scalar, one side collection. the collection side you use .append().
You decide which end is the non-collection by setting remote_side, in your
code below its invitee.
On Feb 22, 2011, at 9:59 PM, Ryan McKillen wrote:
I added that in because without it I get:
TypeError:
Got it. Many thanks!
On Tue, Feb 22, 2011 at 7:02 PM, Michael Bayer mike...@zzzcomputing.comwrote:
one side scalar, one side collection. the collection side you use
.append(). You decide which end is the non-collection by setting
remote_side, in your code below its invitee.
On Feb
You are right, but I would like to create the database without to
connect to
other database existent, I'm newbie learning python and sqlalchemy.
any example will be welcome.
Thanks a lot
On Feb 22, 6:06 pm, Warwick Prince warwi...@mushroomsys.com wrote:
Hi Toninho
Looks to me that the issue
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