Z cxOracle DA

This is a Zope Database Adaptor for cx_Oracle. It's currently only been tested with Zope 2.7 and above with cx_Oracle 4.3.1 and above.

Installation

You must install cx_Oracle before attempting to use this DA.

You can find cx_Oracle at:

http://cx-oracle.sourceforge.net/

Then extract this product into your Zope instances Products directory.

Connection Strings

The connection string is passed directly to cx_Oracle.connect().

The string is usually of the form username/password@TNS

Known Issues

cx_Oracle returns date types as python datetime.datetime types. The DA will check the queries description to see if any of the rows being returned are of that type and if they are will convert them on the fly to Zopes DateTime type. Unfortunately this currently means the DA iterates through all the rows returned and modifies the return values which is far from optimal.

Also the DA currently doesn't handle returned datetime timezones well. It currently converts all datetimes to UTC regardless of the timezone Oracle is using. Ideally the DA would query the current Oracle DBTIMEZONE and use that instead. If you want to change the timezone used for datetime conversion then edit db.py and modify CONVERSION_TIMEZONE.

Authors

Andy Hird Ryan Hughes <[email protected]>