one.person
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More options Jun 12, 5:12 pm
From: "one.person" <[EMAIL PROTECTED]>
Date: Wed, 13 Jun 2007 00:12:50 -0000
Local: Tues, Jun 12 2007 5:12 pm
Subject: Re: mssql reflection NoSuchTableError
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Thanks for the quick reply, I have additional info after more
experimentation. This works fine in a single python session as shown:
>>> from sqlalchemy import *
>>> db = create_engine('mssql://login:[EMAIL PROTECTED]/dbname')
>>> metadata = BoundMetaData(db)
>>> z_table = Table('z_table', metadata,
Column('col1', Integer),
Column('col2', String(20))
)
>>> z_table.create()
>>> z_table_test = Table('z_table', metadata, autoload=True)
>>> [c.name for c in z_table_test.columns]
['col1', 'col2']
However, if I shut down python and start a new session (I am using
IDLE btw), it will not pick up the table it just created:
>>> from sqlalchemy import *
>>> db = create_engine('mssql://login:[EMAIL PROTECTED]/dbname')
>>> metadata = BoundMetaData(db)
>>> z_table_test = Table('z_table', metadata, autoload=True)
Traceback (most recent call last):
File "<pyshell#3>", line 1, in -toplevel-
z_table_test = Table('z_table', metadata, autoload=True)
File "build\bdist.win32\egg\sqlalchemy\schema.py", line 166, in
__call__
File "build\bdist.win32\egg\sqlalchemy\engine\base.py", line 809, in
reflecttable
File "build\bdist.win32\egg\sqlalchemy\databases\mssql.py", line
506, in reflecttable
NoSuchTableError: z_table
Consequently when I do the above I cannot reflect any of the pre-
existing tables in the database.
When I check the database itself 'z_table' really does exist and I can
query it in Query Analyzer and modify it in Enterprise Manager.
Thanks again for your help!
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