I'm getting some pretty strange behavior when connecting to SQL
Server.
My code is pretty straight forward, just create an engine, create
metadata, introspect on a table...
from sqlalchemy import *
db = create_engine('mssql://./msdb')
meta = BoundMetaData(db)
tbl = Table('sysdtssteplog', meta, autoload=True)
Those 4 lines yield an exceptoin o the last line:
Strategy 4: Traceback:Traceback (most recent call last):
File "build\bdist.win32\egg\adodbapi\adodbapi.py", line 540, in
executeHelper
File "<COMObject ADODB.Command>", line 3, in Execute
File "c:\python24\lib\site-packages\win32com\client\dynamic.py",
line 258, in
_ApplyTypes_
result = self._oleobj_.InvokeTypes(*(dispid, LCID, wFlags,
retType, argTypes
) + args)
com_error: (-2147352567, 'Exception occurred.', (0, 'Microsoft OLE DB
Provider
for SQL Server', 'Cannot create new connection because in manual or
distributed
transaction mode.', None, 0, -2147467259), None)
--- ADODBAPI on command:SELECT [C].[COLUMN_NAME],
[TABLE_CONSTRAIN_8109].[CONSTR
AINT_TYPE]
FROM [INFORMATION_SCHEMA].[KEY_COLUMN_USAGE] AS C,
[INFORMATION_SCHEMA].[TABLE_C
ONSTRAINTS] AS [TABLE_CONSTRAIN_8109]
WHERE [TABLE_CONSTRAIN_8109].[CONSTRAINT_NAME] = [C].[CONSTRAINT_NAME]
AND [C].[
TABLE_NAME] = ? with parameters: ['sysdtssteplog'] 'SELECT [C].
[COLUMN_NAME], [T
ABLE_CONSTRAIN_8109].[CONSTRAINT_TYPE] \nFROM [INFORMATION_SCHEMA].
[KEY_COLUMN_U
SAGE] AS C, [INFORMATION_SCHEMA].[TABLE_CONSTRAINTS] AS
[TABLE_CONSTRAIN_8109] \
nWHERE [TABLE_CONSTRAIN_8109].[CONSTRAINT_NAME] = [C].
[CONSTRAINT_NAME] AND [C].
[TABLE_NAME] = ?' ['sysdtssteplog']
If I try to assign tbl one more time, I get no exception. Verry odd
and I've had no luck debugging this in sqlalchemny.
vic
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