[DB-SIG] python connection to Velocis Database
Carl Karsten
carl at personnelware.com
Tue Dec 8 06:58:50 CET 2009
On Mon, Dec 7, 2009 at 11:40 PM, Susan <shuying at gmail.com> wrote:
> Thanks Vernon & Marc-Andre for your replies. Your suggestion has been
> helpful and I am running Microsoft Windows. The following:
>
> from win32com.client import Dispatch
> conn = Dispatch(r'ADODB.Connection')
> conn.Open("Dsn=xxx;uid=xxx;pwd=xxx")
> conn.Execute('create table foo (blah char(30) )')
> conn.Execute("insert into foo values('jenny')")
> conn.Close()
>
> works and creates a table 'foo'.
>
> However, a simple select results in an error:
>
> from win32com.client import Dispatch
> conn = Dispatch(r'ADODB.Connection')
> conn.Open("Dsn=xxx;uid=xxx;pwd=xxx")
> recset, affected = conn.Execute('select name from tablename')
> conn.Close()
>
>>>> recset, affected = conn.Execute('select name from tablename')
> Traceback (most recent call last):
> File "<stdin>", line 1, in <module>
> File "<COMObject ADODB.Connection>", line 3, in Execute
> File "C:\Python26\lib\site-packages\win32com\client\dynamic.py",
> line 272, in _ApplyTypes_
> result = self._oleobj_.InvokeTypes(*(dispid, LCID, wFlags,
> retType, argTypes) + args)
> pywintypes.com_error: (-2147352567, 'Exception occurred.', (0, None,
> None, None, 0, -2147467259), None)
>
> Has anyone who has worked on old, esoteric databases before
> encountered a similar problem and solved it?
I had to connect to something (i forget exactly what) but it had
quircks. I tried this and that, and had the best luck with
http://ceodbc.sourceforge.net
One of the best parts was getting it patched to work around some
hardcoded hack in the odbc driver I was using. get it, try it, join
the mail list.
--
Carl K
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