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ANNOUNCING
eGenix.com mxODBC
Python ODBC Database Interface
Version 3.3.3
mxODBC is our commercially supported Python extension providing
ODBC database connectivity to Python applications
on Windows, Mac OS X, Unix and BSD platforms
with many advanced Python DB-API extensions and
full support of stored procedures
This announcement is also available on our web-site for online reading:
http://www.egenix.com/company/news/eGenix-mxODBC-3.3.3-GA.html
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INTRODUCTION
mxODBC provides an easy-to-use, high-performance, reliable and robust
Python interface to ODBC compatible databases such as MS SQL Server,
Oracle Database, IBM DB2, Informix and Netezza, SAP Sybase ASE and
Sybase Anywhere, Teradata, MySQL, MariaDB, PostgreSQL, SAP MaxDB and
many more:
http://www.egenix.com/products/python/mxODBC/
The "eGenix mxODBC - Python ODBC Database Interface" product is a
commercial extension to our open-source eGenix mx Base Distribution:
http://www.egenix.com/products/python/mxBase/
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NEWS
The 3.3.3 release of our mxODBC is a patch level release of our
popular Python ODBC Interface for Windows, Linux, Mac OS X and
FreeBSD. It includes these enhancements and fixes:
Driver Compatibility
--------------------
MS SQL Server
MS SQL Server Native Client
* Added a fix for the MS SQL Server Native Client error
"[Microsoft][ODBC Driver 11 for SQL Server][SQL Server]The data
types varchar and text are incompatible in the equal to operator."
when trying to bind a string of more than 256 bytes to a *VARCHAR*
column while using cursor.executedirect(). cursor.execute() was
unaffected by this. Thanks to Paul Perez for reporting this.
* Added a note to *avoid using "execute "* when calling stored
procedures with MS SQL Server. This can result in '[Microsoft][SQL
Native Client]Invalid Descriptor Index' errors. Simply dropping the
"execute " will have the error go away.
FreeTDS ODBC Driver
* Added a work-around to address the FreeTDS driver error
'[FreeTDS][SQL Server]The data types varbinary and image are
incompatible in the equal to operator.' when trying to bind binary
strings longer than 256 bytes to a *VARBINARY* column. This problem
does not occur with the MS SQL Server Native Client.
* Reenabled returning *cursor.rowcount* for FreeTDS >= 0.91. In
previous versions, FreeTDS could return wrong data for .rowcount
when using SELECTs.This should make *SQLAlchemy* users happy again.
* Add work-around to have FreeTDS ODBC driver accept *binary data* in
strings as input for VARBINARY columns. A side effect of this is
that FreeTDS will now also accept binary data in VARCHAR columns.
SAP Sybase ASE
* Added work-arounds and improvements for Sybase ASE ODBC drivers to
enable working with *BINARY* and *VARBINARY* columns.
* Added a work-around for a *cursor.rowcount* problem with Sybase ASE's
ODBC driver on 64-bit platforms. It sometimes returns 4294967295
instead of -1.
* Added note about random segfault problems with the
*Sybase ASE 15.7 ODBC driver* on Windows. Unfortunately, there's
nothing much we can do about this, other than recommend using the
Sybase ASE 15.5 ODBC driver version which does not have these
stability problems.
Misc:
* Added improved documentation on the *direct execution model*
available in mxODBC. This can help in more complex parameter
binding situations and also provides performance boosts for a few
databases, including e.g. MS SQL Server.
* Improved tests and added more data binding tests, esp. for SELECT
queries with bound parameters.
* Fixed some minor issues with the *package web installer* related to
Linux2 vs. Linux3, FreeBSD installations and an intermittent error
related to hash seeds, which sometimes caused prebuilt archives to
not install correctly.
For the full set of changes please check the mxODBC change log:
http://www.egenix.com/products/python/mxODBC/changelog.html
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FEATURES
mxODBC 3.3 was released on 2014-04-08. Please see the full
announcement for highlights of the 3.3 release:
http://www.egenix.com/company/news/eGenix-mxODBC-3.3.0-GA.html
For the full set of features mxODBC has to offer, please see:
http://www.egenix.com/products/python/mxODBC/#Features
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EDITIONS
mxODBC is available in these two editions:
* The Professional Edition, which gives full access to all mxODBC features.
* The Product Development Edition, which allows including mxODBC in
applications you develop.
For a complete overview of the available editions, please see the
product page:
http://www.egenix.com/products/python/mxODBC/#mxODBCEditions
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DOWNLOADS
The download archives and instructions for installing the package can
be found at:
http://www.egenix.com/products/python/mxODBC/
In order to use the eGenix mxODBC package you will first need to
install the eGenix mx Base package:
http://www.egenix.com/products/python/mxBase/
You can also simply use:
pip install egenix-mxodbc
and then get evaluation licenses from our website to try mxODBC:
http://www.egenix.com/products/python/mxODBC/#Evaluation
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UPGRADING
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 3.3 licenses can continue to use
their licenses with this patch level release.
For upgrade purchases, we will give out 20% discount coupons going
from mxODBC 2.x to 3.3 and 50% coupons for upgrades from mxODBC 3.x to
3.3. Please contact the eGenix.com Sales Team with your existing
license serials for details for an upgrade discount coupon.
If you want to try the new release before purchase, you can request
30-day evaluation licenses by visiting our web-site
http://www.egenix.com/products/python/mxODBC/#Evaluation
or writing to sa...@egenix.com, stating your name (or the name of the
company) and the number of eval licenses that you need.
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SUPPORT
Commercial support for this product is available from eGenix.com.
Please see
http://www.egenix.com/services/support/
for details about our support offerings.
_______________________________________________________________________
INFORMATION
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.
Enjoy,
--
Marc-Andre Lemburg
eGenix.com
Professional Python Services directly from the Source (#1, Jun 25 2015)
>>> Python Projects, Coaching and Consulting ... http://www.egenix.com/
>>> mxODBC Plone/Zope Database Adapter ... http://zope.egenix.com/
>>> mxODBC, mxDateTime, mxTextTools ... http://python.egenix.com/
________________________________________________________________________
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2015-07-20: EuroPython 2015, Bilbao, Spain ... 25 days to go
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