re-attaching the files
On Monday, September 11, 2017 at 3:34:47 PM UTC-7, dirk.biesinger wrote:
>
> I am encountering errors when trying to use the pd.to_sql function to
> write a dataframe to MS SQL Data Warehouse.
> The connection works when NOT using sqlalchemy engines.
> I can read dataframes as well as row-by-row via select statements when I
> use pyodbc connections
> I can write data via insert statements (as well as delete data) when using
> pyodbc.
> However, when I try to connect using a sqlalchemy engine I run into a
> string of error messages starting with:
>
> ProgrammingError: (pyodbc.ProgrammingError) ('42000', "[42000]
> [Microsoft][ODBC Driver 13 for SQL Server][SQL Server]Catalog view
> 'dm_exec_sessions' is not supported in this version. (104385)
> (SQLExecDirectW)")
>
>
> I have searched online, and this exact error seems to have been reported /
> evaluated in May of this year as issue #3994:
>
>
> https://bitbucket.org/zzzeek/sqlalchemy/issues/3994/azure-sql-datawarehouse-basic
>
>
> I could not find a solution to this, and I'd really dislike to do a line-wise
> or blob insert statement (I'm working with multiple datasets that each has a
> few million rows, so execution time is a consideration, although the result
> sets I'm getting are more like in the 100k lines area each.)
>
>
> I get the same error messages even when I replace the pd.to_sql command with
> a simple engine.connect()
>
>
> Enclosed my installed packages (packages.list)
>
> Enclosed the full traceback (traceback.txt)
>
>
> This is the code I'm using:
>
> connection_string =
> "mssql+pyodbc://<username>:<password>@<sqlhost>.database.windows.net:<port>/<database>?driver=ODBC+Driver+13+for+SQL+Server"
> engn = sqlalchemy.engine.create_engine(connection_string, echo=True)
> engn.connect()
>
>
> I'm very well aware that MS SQL DataWarehouse behaves a bit different, so
> I'm open for some experimenting to get this issue narrowed down.
>
> In case it matters: I'm running an ubuntu 16.04 VM on azure with jupyter
> notebook server and python 3.6.1.
>
> Best,
>
> DB
>-- SQLAlchemy - The Python SQL Toolkit and Object Relational Mapper http://www.sqlalchemy.org/ To post example code, please provide an MCVE: Minimal, Complete, and Verifiable Example. See http://stackoverflow.com/help/mcve for a full description. --- You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sqlalchemy+unsubscr...@googlegroups.com. To post to this group, send email to sqlalchemy@googlegroups.com. Visit this group at https://groups.google.com/group/sqlalchemy. For more options, visit https://groups.google.com/d/optout.
2017-09-11 21:33:50,797 INFO sqlalchemy.engine.base.Engine SELECT
SERVERPROPERTY('ProductVersion')
INFO:sqlalchemy.engine.base.Engine:SELECT SERVERPROPERTY('ProductVersion')
2017-09-11 21:33:50,799 INFO sqlalchemy.engine.base.Engine ()
INFO:sqlalchemy.engine.base.Engine:()
2017-09-11 21:33:50,857 INFO sqlalchemy.engine.base.Engine SELECT schema_name()
INFO:sqlalchemy.engine.base.Engine:SELECT schema_name()
2017-09-11 21:33:50,859 INFO sqlalchemy.engine.base.Engine ()
INFO:sqlalchemy.engine.base.Engine:()
ERROR:root:An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line string', (1, 10))
ERROR:root:An unexpected error occurred while tokenizing input
The following traceback may be corrupted or invalid
The error message is: ('EOF in multi-line string', (1, 10))
---------------------------------------------------------------------------
Empty Traceback (most recent call last)
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
_do_get(self)
1121 wait = use_overflow and self._overflow >= self._max_overflow
-> 1122 return self._pool.get(wait, self._timeout)
1123 except sqla_queue.Empty:
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/util/queue.py in
get(self, block, timeout)
144 if self._empty():
--> 145 raise Empty
146 elif timeout is None:
Empty:
During handling of the above exception, another exception occurred:
ProgrammingError Traceback (most recent call last)
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/engine/base.py
in _wrap_pool_connect(self, fn, connection)
2146 try:
-> 2147 return fn()
2148 except dialect.dbapi.Error as e:
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
unique_connection(self)
327 """
--> 328 return _ConnectionFairy._checkout(self)
329
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
_checkout(cls, pool, threadconns, fairy)
765 if not fairy:
--> 766 fairy = _ConnectionRecord.checkout(pool)
767
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
checkout(cls, pool)
515 def checkout(cls, pool):
--> 516 rec = pool._do_get()
517 try:
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
_do_get(self)
1137 with util.safe_reraise():
-> 1138 self._dec_overflow()
1139 else:
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/util/langhelpers.py
in __exit__(self, type_, value, traceback)
65 if not self.warn_only:
---> 66 compat.reraise(exc_type, exc_value, exc_tb)
67 else:
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/util/compat.py
in reraise(tp, value, tb, cause)
186 raise value.with_traceback(tb)
--> 187 raise value
188
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
_do_get(self)
1134 try:
-> 1135 return self._create_connection()
1136 except:
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
_create_connection(self)
332
--> 333 return _ConnectionRecord(self)
334
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
__init__(self, pool, connect)
460 if connect:
--> 461 self.__connect(first_connect_check=True)
462 self.finalize_callback = deque()
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
__connect(self, first_connect_check)
660 for_modify(pool.dispatch).\
--> 661 exec_once(self.connection, self)
662 if pool.dispatch.connect:
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/event/attr.py in
exec_once(self, *args, **kw)
245 try:
--> 246 self(*args, **kw)
247 finally:
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/event/attr.py in
__call__(self, *args, **kw)
255 for fn in self.listeners:
--> 256 fn(*args, **kw)
257
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/util/langhelpers.py
in go(*arg, **kw)
1330 once_fn = once.pop()
-> 1331 return once_fn(*arg, **kw)
1332
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/engine/strategies.py
in first_connect(dbapi_connection, connection_record)
180 c._execution_options = util.immutabledict()
--> 181 dialect.initialize(c)
182 event.listen(pool, 'first_connect', first_connect,
once=True)
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/connectors/pyodbc.py
in initialize(self, connection)
164 # run other initialization which asks for user name, etc.
--> 165 super(PyODBCConnector, self).initialize(connection)
166
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/dialects/mssql/base.py
in initialize(self, connection)
1708 def initialize(self, connection):
-> 1709 super(MSDialect, self).initialize(connection)
1710 self._setup_version_attributes()
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/engine/default.py
in initialize(self, connection)
255 self.default_isolation_level = \
--> 256 self.get_isolation_level(connection.connection)
257 except NotImplementedError:
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/dialects/mssql/base.py
in get_isolation_level(self, connection)
1702 where session_id = @@SPID
-> 1703 """)
1704 val = cursor.fetchone()[0]
ProgrammingError: ('42000', "[42000] [Microsoft][ODBC Driver 13 for SQL
Server][SQL Server]Catalog view 'dm_exec_sessions' is not supported in this
version. (104385) (SQLExecDirectW)")
The above exception was the direct cause of the following exception:
ProgrammingError Traceback (most recent call last)
<ipython-input-22-3d2c03a125ac> in <module>()
16 # dbapi_connection.autocommit = True
17 #cnxn = pyodbc.connect(connection_str)
---> 18 engn.connect()
19 #df.to_sql(tbl_server_out, engn, if_exists='append', index=False)
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/engine/base.py
in connect(self, **kwargs)
2089 """
2090
-> 2091 return self._connection_cls(self, **kwargs)
2092
2093 def contextual_connect(self, close_with_result=False, **kwargs):
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/engine/base.py
in __init__(self, engine, connection, close_with_result, _branch_from,
_execution_options, _dispatch, _has_events)
88 else:
89 self.__connection = connection \
---> 90 if connection is not None else engine.raw_connection()
91 self.__transaction = None
92 self.__savepoint_seq = 0
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/engine/base.py
in raw_connection(self, _connection)
2175 """
2176 return self._wrap_pool_connect(
-> 2177 self.pool.unique_connection, _connection)
2178
2179
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/engine/base.py
in _wrap_pool_connect(self, fn, connection)
2149 if connection is None:
2150 Connection._handle_dbapi_exception_noconnection(
-> 2151 e, dialect, self)
2152 else:
2153 util.reraise(*sys.exc_info())
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/engine/base.py
in _handle_dbapi_exception_noconnection(cls, e, dialect, engine)
1463 util.raise_from_cause(
1464 sqlalchemy_exception,
-> 1465 exc_info
1466 )
1467 else:
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/util/compat.py
in raise_from_cause(exception, exc_info)
201 exc_type, exc_value, exc_tb = exc_info
202 cause = exc_value if exc_value is not exception else None
--> 203 reraise(type(exception), exception, tb=exc_tb, cause=cause)
204
205 if py3k:
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/util/compat.py
in reraise(tp, value, tb, cause)
184 value.__cause__ = cause
185 if value.__traceback__ is not tb:
--> 186 raise value.with_traceback(tb)
187 raise value
188
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/engine/base.py
in _wrap_pool_connect(self, fn, connection)
2145 dialect = self.dialect
2146 try:
-> 2147 return fn()
2148 except dialect.dbapi.Error as e:
2149 if connection is None:
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
unique_connection(self)
326
327 """
--> 328 return _ConnectionFairy._checkout(self)
329
330 def _create_connection(self):
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
_checkout(cls, pool, threadconns, fairy)
764 def _checkout(cls, pool, threadconns=None, fairy=None):
765 if not fairy:
--> 766 fairy = _ConnectionRecord.checkout(pool)
767
768 fairy._pool = pool
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
checkout(cls, pool)
514 @classmethod
515 def checkout(cls, pool):
--> 516 rec = pool._do_get()
517 try:
518 dbapi_connection = rec.get_connection()
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
_do_get(self)
1136 except:
1137 with util.safe_reraise():
-> 1138 self._dec_overflow()
1139 else:
1140 return self._do_get()
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/util/langhelpers.py
in __exit__(self, type_, value, traceback)
64 self._exc_info = None # remove potential circular
references
65 if not self.warn_only:
---> 66 compat.reraise(exc_type, exc_value, exc_tb)
67 else:
68 if not compat.py3k and self._exc_info and self._exc_info[1]:
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/util/compat.py
in reraise(tp, value, tb, cause)
185 if value.__traceback__ is not tb:
186 raise value.with_traceback(tb)
--> 187 raise value
188
189 else:
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
_do_get(self)
1133 if self._inc_overflow():
1134 try:
-> 1135 return self._create_connection()
1136 except:
1137 with util.safe_reraise():
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
_create_connection(self)
331 """Called by subclasses to create a new ConnectionRecord."""
332
--> 333 return _ConnectionRecord(self)
334
335 def _invalidate(self, connection, exception=None):
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
__init__(self, pool, connect)
459 self.__pool = pool
460 if connect:
--> 461 self.__connect(first_connect_check=True)
462 self.finalize_callback = deque()
463
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/pool.py in
__connect(self, first_connect_check)
659 pool.dispatch.first_connect.\
660 for_modify(pool.dispatch).\
--> 661 exec_once(self.connection, self)
662 if pool.dispatch.connect:
663 pool.dispatch.connect(self.connection, self)
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/event/attr.py in
exec_once(self, *args, **kw)
244 if not self._exec_once:
245 try:
--> 246 self(*args, **kw)
247 finally:
248 self._exec_once = True
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/event/attr.py in
__call__(self, *args, **kw)
254 fn(*args, **kw)
255 for fn in self.listeners:
--> 256 fn(*args, **kw)
257
258 def __len__(self):
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/util/langhelpers.py
in go(*arg, **kw)
1329 if once:
1330 once_fn = once.pop()
-> 1331 return once_fn(*arg, **kw)
1332
1333 return go
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/engine/strategies.py
in first_connect(dbapi_connection, connection_record)
179 _has_events=False)
180 c._execution_options = util.immutabledict()
--> 181 dialect.initialize(c)
182 event.listen(pool, 'first_connect', first_connect,
once=True)
183
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/connectors/pyodbc.py
in initialize(self, connection)
163
164 # run other initialization which asks for user name, etc.
--> 165 super(PyODBCConnector, self).initialize(connection)
166
167 def _dbapi_version(self):
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/dialects/mssql/base.py
in initialize(self, connection)
1707
1708 def initialize(self, connection):
-> 1709 super(MSDialect, self).initialize(connection)
1710 self._setup_version_attributes()
1711
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/engine/default.py
in initialize(self, connection)
254 try:
255 self.default_isolation_level = \
--> 256 self.get_isolation_level(connection.connection)
257 except NotImplementedError:
258 self.default_isolation_level = None
/home/saravji/anaconda3/lib/python3.6/site-packages/sqlalchemy/dialects/mssql/base.py
in get_isolation_level(self, connection)
1701 FROM sys.dm_exec_sessions
1702 where session_id = @@SPID
-> 1703 """)
1704 val = cursor.fetchone()[0]
1705 cursor.close()
ProgrammingError: (pyodbc.ProgrammingError) ('42000', "[42000] [Microsoft][ODBC
Driver 13 for SQL Server][SQL Server]Catalog view 'dm_exec_sessions' is not
supported in this version. (104385) (SQLExecDirectW)")
packages.list
Description: Binary data
