I get the following traceback:
>>> conn.execute(sqlalchemy.func.myfunc('1', '2'))
Traceback (most recent call last):
File "<interactive input>", line 1, in <module>
File "C:\Python25\lib\site-packages\sqlalchemy-0.5.6-py2.5.egg
\sqlalchemy\engine\base.py", line 824, in execute
return Connection.executors[c](self, object, multiparams, params)
File "C:\Python25\lib\site-packages\sqlalchemy-0.5.6-py2.5.egg
\sqlalchemy\engine\base.py", line 858, in _execute_function
return self._execute_clauseelement(func.select(), multiparams,
params)
File "C:\Python25\lib\site-packages\sqlalchemy-0.5.6-py2.5.egg
\sqlalchemy\engine\base.py", line 874, in _execute_clauseelement
return self.__execute_context(context)
File "C:\Python25\lib\site-packages\sqlalchemy-0.5.6-py2.5.egg
\sqlalchemy\engine\base.py", line 896, in __execute_context
self._cursor_execute(context.cursor, context.statement,
context.parameters[0], context=context)
File "C:\Python25\lib\site-packages\sqlalchemy-0.5.6-py2.5.egg
\sqlalchemy\engine\base.py", line 950, in _cursor_execute
self._handle_dbapi_exception(e, statement, parameters, cursor,
context)
File "C:\Python25\lib\site-packages\sqlalchemy-0.5.6-py2.5.egg
\sqlalchemy\engine\base.py", line 931, in _handle_dbapi_exception
raise exc.DBAPIError.instance(statement, parameters, e,
connection_invalidated=is_disconnect)
DatabaseError: (DatabaseError) ORA-14551: cannot perform a DML
operation inside a query
'SELECT myfunc(:myfunc_2, :myfunc_3) AS myfunc_1 FROM
DUAL' {'myfunc_2': '1', 'myfunc_2': '2'}
The select is the problem. Leaving aside the issue of whether its a
good idea to modify data inside a function, is there a way to do this
using sqlalchemy? And if so, what is the preferred syntax/style?
cheers
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