Michael,
I just found this thread:
http://www.mail-archive.com/[email protected]/msg08048.html
which corresponds to this changeset:
http://www.sqlalchemy.org/trac/changeset/4159
It seems that this issue has come up in the past. I've tried the
following modified query:
result = conn.execute('EXEC claim_highest_priority_work')
which should satisfy the regexp, but it still produces the closed
cursor error.
Not sure if this helps you help me...
On May 8, 11:09 am, Daniel <[email protected]> wrote:
> Michael,
>
> I'm not sure if this helps, but I've noticed that if my stored
> procedure returns all null values, then I can fetch them. If they are
> non-null values I get an error:
>
> [Dbg]>>> result = conn.execute('claim_highest_priority_work')
> [Dbg]>>> print result.fetchone()
> Traceback (most recent call last):
> File "<interactive input>", line 1, in <module>
> File "C:\Python25\Lib\site-packages\sqlalchemy\engine\base.py", line
> 1668, in fetchone
> self.connection._handle_dbapi_exception(e, None, None,
> self.cursor, self.context)
> File "C:\Python25\Lib\site-packages\sqlalchemy\engine\base.py", line
> 931, in _handle_dbapi_exception
> raise exc.DBAPIError.instance(statement, parameters, e,
> connection_invalidated=is_disconnect)
> ProgrammingError: (ProgrammingError) Attempt to use a closed cursor.
> None None
> [Dbg]>>> result = conn.execute('claim_highest_priority_work')
> [Dbg]>>> print result.fetchone()
> (None, None, None, None, None)
>
> Any idea why this would be?
>
> On May 8, 10:46 am, "Michael Bayer" <[email protected]> wrote:
>
> > Daniel wrote:
>
> > > Thanks Michael,
>
> > > When I try that it produces this SQL
> > > SELECT claim_highest_priority_work() AS claim_highest_priority_work_1
>
> > > and this error
> > > 'claim_highest_priority_work' is not a recognized built-in function
> > > name.
>
> > this is more of an MSSQL "how to" issue then. on most databases, running
> > a function and returning results looks like "SELECT function()". On
> > oracle, its "SELECT function() FROM DUAL". What is it on MSSQL ?
>
> > > On May 8, 10:20 am, "Michael Bayer" <[email protected]> wrote:
> > >> Daniel wrote:
>
> > >> > Hello,
>
> > >> > I've created a stored procedure in MSSQL. I'm not sure how to use it
> > >> > in SQLAlchemy. The stored procedure is called
> > >> > 'claim_highest_priority_work' and I can call it directly as follows:
>
> > >> > result = conn.execute('claim_highest_priority_work')
>
> > >> > I know it runs because I see the result in the database, but I'm not
> > >> > sure how to access the return values? They exactly match one of the
> > >> > tables I've defined.
>
> > >> > What's the right way to map/execute a stored procedure and
> > >> > subsequently access what it returns?
>
> > >> you probably want to select from it. an expression construct which
> > >> achieves this would be:
>
> > >> select([func.claim_highest_priority_work()])
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