On 2009-01-29 21:15, Alex Willmer wrote: > (Reposted to DB-SIG from clp) > > This week, I used the adodbapi module against an SQL Server Express > database. I was surprised to get an exception, when I attempted to > submit a second query with my cursor object. The full session is > below. > > With cx_Oracle I've become used to reusing a cursor for subsequent > queries. The PEP doesn't specify either way, that I can see. Is this > behaviour left to the implementation, or should I be able to expect a > cursor is reusable?
This should be possible. In fact the statement caching mechanism outlined in the DB-API spec relies on this: if you pass in the same query twice, the module can opt to reuse the already prepared statement. mxODBC works that way and we've been using this mechanism to cache pre-prepared cursors for common queries in our apps for years. -- Marc-Andre Lemburg eGenix.com Professional Python Services directly from the Source (#1, Jan 29 2009) >>> Python/Zope Consulting and Support ... http://www.egenix.com/ >>> mxODBC.Zope.Database.Adapter ... http://zope.egenix.com/ >>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/ ________________________________________________________________________ ::: Try our new mxODBC.Connect Python Database Interface for free ! :::: eGenix.com Software, Skills and Services GmbH Pastor-Loeh-Str.48 D-40764 Langenfeld, Germany. CEO Dipl.-Math. Marc-Andre Lemburg Registered at Amtsgericht Duesseldorf: HRB 46611 http://www.egenix.com/company/contact/ _______________________________________________ DB-SIG maillist - DB-SIG@python.org http://mail.python.org/mailman/listinfo/db-sig
