eGenix.com mxODBC Zope DA
eGenix.com is pleased to announce the availability of our new
high performance and professional quality ODBC Zope Database Adapter (Zope DA): the mxODBC Zope DA.
The mxODBC Zope DA™ product allows you to easily connect your Zope installation or Plone
CMS to just about any database backend on the market today, giving you
the reliability of the commercially supported eGenix.com product mxODBC and the flexibility of the ODBC standard as middle-tier architecture.
mxODBC Zope DA works on Windows, Linux, Mac OS X, Solaris and FreeBSD, providing you with the same interface, flexibility and robustness across all on all these platforms.
The mxODBC Zope DA implements thread-safe connection pooling and
multiple physical connects per logical Zope connection. You can safely
run Z SQL Methods in parallel, achieving a much better performance than
other Zope database adapters under heavy load. This makes it ideal for
deployment in ZEO Clusters and Zope hosting environments where
stability and high performance are a top priority.
Using mxODBC Zope DA for Zope Database Applications
At EuroPython 2007, we gave a talk about Zope and relational database systems (RDBMS).
The talk provides a high-level introduction on how Zope can be used for
database web applications and where the mxODBC Zope DA can help. Please
see our Presentations & Talks section for details.
mxODBC Zope DA for Zope 2.3 - 2.11 Database Applications
Our new version mxODBC Zope DA 2.0 was changed to conform to the new
layout and installation system used by Zope 2.12. If you still use an
earlier version of Zope, please consider using the previous release of our mxODBC Zope DA product.
Zope Level 3 Database Adapter: the mxODBC Zope DA is fully multi-threaded and can handle multiple connections to multiple databases.
Fully compatible to standard Z SQL Methods.
physical database connections are pooled and kept open, to reduce the
connection overhead to a minimum. This is especially important for high
latency database connections and ones like Oracle which take a
considerable amount of time to setup
Parallel Execution of Queries on a single logical connection:
the mxODBC Zope DA can manage any number of physical connections on a
single logical connection. This enables running truly parallel Z SQL
Method queries -- a feature not available in other Zope DAs.
Zero Maintenance Mode of Operation: connections which are having temporary network problems are automatically reconnected as they become available again.
- Full Unicode Support: The
Zope DA can communicate with the database using Unicode, 8-bit strings
or a mix of the two. It provides automatic conversion as necessary to
make it possible to adapt the database or the Zope application to the
- Full 64-bit Support: The
underlying mxODBC 3.1 library fully supports 64-bit platforms such as Mac
OS X 10.6 (Snow Leopard) and 64-bit Linux systems that use iODBC or
- Compatible with all recent Zope and Python releases: Support for Zope 2.12 and later, Python 2.5 and 2.6. If you need support for older Zope releases, please use version 1.0.10 of our mxODBC Zope DA.
Cross-platform Connection Objects: The Zope DA will automatically choose the right platform specific ODBC manager for you.
Per Connection Adjustable ODBC Interface:
mxODBC comes with many different subpackages to choose from on Unix.
The Zope DA allows you to select these subpackages on a per-connection
Per Connection Error Handling:
you can tell each connection whether it should report ODBC warnings or
not; furthermore all warnings and errors are made available as list
.messages on the DatabaseConnection object.
Transaction-safe Automatic Reconnect:
when the DA finds that a connection has timed out, it automatically
tries a reconnect and replays the transaction on the connection (unlike
other DAs which break the transaction scheme by doing a reconnect
Built-in Schema Cache: this results in improved performance under heavy load.
Database Schema Access:
all ODBC catalog methods are made available for much better database
schema inquiry. The catalog methods allow building generic database
interrogation or manipulation tools and facilitates writing database
independent Zope products.
- Native Support for Python data types:
the Zope DA can optionally use Python datetime object, decimal objects
in result sets to simplify integration. It also supports Zope's
DateTime objects, mxDateTime objects, strings and tuples.
the mxODBC Zope DA only connects to the database backends when a
connection is actually requested. This results in a better use of
resources compared to other Zope DAs.
Fully compatible to the popular Znolk SQL Wizard Product and other similar products relying on the common database schema access methods .tables() and .columns().
More Information and Download
For more information please visit our website at
We have binary versions available for all Zope versions starting
with 2.12, supporting Python versions 2.5 and 2.6, on all Zope
platforms: Windows, Linux, Mac OS X, FreeBSD and others.