Python ODBC Database Interface
mxODBC is our commercially supported Python extension providing ODBC database connectivity to Python applications on Windows, Mac OS X, Unix and BSD platforms
This announcement is also available on our web-site for online reading: http://www.egenix.com/company/news/eGenix-mxODBC-3.2.2-GA.html
mxODBC provides an easy-to-use, high-performance, reliable and robust Python interface to ODBC compatible databases such as MS SQL Server, MS Access, Oracle Database, IBM DB2 and Informix , Sybase ASE and Sybase Anywhere, MySQL, PostgreSQL, SAP MaxDB and many more:
The "eGenix mxODBC - Python ODBC Database Interface" product is a commercial extension to our open-source eGenix mx Base Distribution:
The 3.2.2 release of our mxODBC is the latest patch level release of our popular Python ODBC Interface. In this release, we've included the following the following enhancements and fixes:
Feature Enhancements --------------------
* Backported the new .cursortype attribute from the upcoming mxODBC 3.3.
The new attribute allows easily adjusting and inspecting the ODBC cursor type to be used for an mxODBC cursor object.
The reason for this unusual backport and inclusion in a patch level release is that we found a serious performance issue with MS SQL Server when using it with mxODBC 3.2 (see below). This needed to be addressed immediately.
Driver Compatibility --------------------
* MS SQL Server performance can now be much enhanced, and increased to levels beyond that of mxODBC 3.1 and previous releases, by adjusting the default cursor type to forward-only cursors:
connection = mx.ODBC.Windows.DriverConnect(...) connection.cursortype = mx.ODBC.Windows.SQL.CURSOR_FORWARD_ONLY # Cursors created on this connection will then default to forward # only cursors, instead of the mxODBC 3.2 default for SQL Server # of using static cursors cursor = connection.cursor()
The performance increase compared to mxODBC 3.2.1 is enormous: from 2-3x faster executes/fetches for average queries, up to 300x faster for simple cases.
In mxODBC 3.3, we will switch to using forward-only cursors per default for all database backends.
* IBM DB2 can benefit from the same performance enhancements using forward-only cursors.
The effect is a lot smaller, but still noticeable: up to 2x faster executes/fetches with forward-only cursors, compared to mxODBC 3.2.1.
* Added documentation to explain the different cursor types, compatibility with different database backends and effects on performance.
* Fixed a problem with using mxODBC cursors as context managers: these worked fine in Python 2.6, but had stopped working in Python 2.7 due to changes in the Python internals.
For the full set of changes please check the mxODBC change log:
mxODBC 3.2 was released on 2012-08-28. Please see the full announcement for highlights of the 3.2 release:
For the full set of features mxODBC has to offer, please see:
mxODBC is available in these three editions:
* The low-cost Standard Edition which provides data connectivity to a single database type, e.g. just MS SQL Server.
* The Professional Edition, which gives full access to all mxODBC features.
* The Product Development Edition, which allows including mxODBC in applications you develop.
Compared to mxODBC 3.0, we have simplified our license terms to clarify the situation on multi-core and virtual machines. In most cases, you no longer need to purchase more than one license per processor or virtual machine, scaling down the overall license costs significantly compared to earlier mxODBC releases.
For a complete overview of the new editions, please see the product page.
The download archives and instructions for installing the package can be found at:
In order to use the eGenix mxODBC package you will first need to install the eGenix mx Base package:
Users are encouraged to upgrade to this latest mxODBC release to benefit from the new features and updated ODBC driver support.
We have taken special care, not to introduce backwards incompatible changes, making the upgrade experience as smooth as possible.
Customers who have purchased mxODBC 3.2 license can continue to use their licenses with this patch level release.
Customers who have purchased mxODBC 2.x, 3.0 or 3.1 licenses, can benefit from upgrade discounts. We will give out 20% discount coupons going from mxODBC 2.x to 3.2 and 50% coupons for upgrades from mxODBC 3.x to 3.2. After upgrade, use of the original license from which you upgraded is no longer permitted.
Please contact the eGenix.com Sales Team at firstname.lastname@example.org with your existing license serials for details for an upgrade discount coupon.
If you want to try the new release before purchace, you can request 30-day evaluation licenses by visiting our web-site
or by writing to email@example.com, stating your name (or the name of the company) and the number of eval licenses that you need.
Commercial support for this product is available from eGenix.com. Please see
for details about our support offerings.
About Python (http://www.python.org/):
Python is an object-oriented Open Source programming language which runs on all modern platforms. By integrating ease-of-use, clarity in coding, enterprise application connectivity and rapid application design, Python establishes an ideal programming platform for today's IT challenges.
About eGenix (http://www.egenix.com/):
eGenix is a software project, consulting and product company focusing on expert services and professional quality products for companies, Python users and developers.