On Tuesday 22 April 2008 19:54:16 Lukasz Szybalski wrote:
> Hello again,
> So now that I have mssql connection ready and data filtered out and
> processed I need to save it to a different database.
>
> mssql -> process data -> save to mysql
>
> I am wondering how should I create a second database connection? In
> second database I will create a table and populate the records.
>
> # First database
> e =
> sqlalchemy.create_engine("mssql://user:[EMAIL PROTECTED]:1433/dbname?dr
>iver=TDS&odbc_options='TDS_Version=8.0'") #e.echo=True
> metadata=sqlalchemy.MetaData(e)
>
> #session stuff
> from sqlalchemy.orm import sessionmaker
> Session = sessionmaker(bind=e, autoflush=True, transactional=True)
> session = Session()
>
> #table stuff
> class th(object):
> pass
> th_table = sqlalchemy.Table('xxxx', metadata, autoload=True)
> mapper(th,th_table)
>
> # database number 2. Is this the way I should create second
> database connection/session/mapper?
> e2 = sqlalchemy.create_engine('mysql://user:[EMAIL PROTECTED]/dbname')
>
> Do I create new metadata?
> metadata2=sqlalchemy.MetaData(e2)
> And then new session2?
> Session2 = sessionmaker(bind=e2, autoflush=True,
> transactional=True) What does this line do?
> session = Session()
>
> Is the above correct way of doing this?
> I would like to keep these connections separate so there will be no
> confusion of what I am using.
>
> Thanks,
> Lucas
well... u dont really need 2nd metadata, and u dont need any
session/mappers/etc ORM-stuff at all. re-bind the metadata to new
engine, then metadata.createall(), and then for each record in each
table in metadata, tbl.select via src_engine, tbl.insert via
dst_engine
but u can try this way too..
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