Hi,

I am pleased to announce the release of ODB 1.7.0.

ODB is an open-source object-relational mapping (ORM) system for C++. It
allows you to persist C++ objects to a relational database without having
to deal with tables, columns, or SQL and without manually writing any of
the mapping code.

Major new features in this release:

* Support for the Oracle database, including updates to the Boost
and Qt profiles.

* Support for optimistic concurrency using object versioning.

* Support for SQL statement execution tracing.

* Support for read-only/const data members.

* Support for persistent classes without object ids.

A more detailed discussion of these features can be found in the
following blog post:

http://www.codesynthesis.com/~boris/...-7-0-released/

For the complete list of new features in this version see the official
release announcement:

http://www.codesynthesis.com/piperma...11/000011.html

ODB is written in portable C++ and you should be able to use it with any
modern C++ compiler. In particular, we have tested this release on GNU/Linux
(x86/x86-64), Windows (x86/x86-64), Mac OS X, and Solaris (x86/x86-64/SPARC)
with GNU g++ 4.2.x-4.6.x, MS Visual C++ 2008 and 2010, and Sun Studio 12.

The currently supported database systems are MySQL, SQLite, PostgreSQL,
and Oracle. ODB also provides profiles for Boost and Qt, which allow you
to seamlessly use value types, containers, and smart pointers from these
libraries in your persistent classes.

More information, documentation, source code, and pre-compiled binaries are
available from:

http://www.codesynthesis.com/products/odb/

Enjoy,
Boris

On Dec 7, 11:43*pm, Boris Kolpackov <bo... (AT) codesynthesis (DOT) com> wrote:
Why isn't that a really bad idea from a performance standpoint?

jg
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On 2011-12-08, Boris Kolpackov <boris (AT) codesynthesis (DOT) com> wrote:
What the...? Oh, you mean you did Oracle in a couple of add-on bits as
well as the core product. Would have been embarrassing to not do them of
course.

Oracle does its own optimistic concurrency, so do you mean it will be
done twice at two different levels?

That will be the SQL that you don't have to deal with then.

Remainder omitted, but I had a quick look at your links, the Oracle
Limitations bit is fun:

Identifier Truncation : of course you couldn't possibly come up with a
name-mapping scheme that would cover most cases.

Query Result Caching : makes no sense at all, you seem to have taken
something that is generally considered good and made it out to be a bad
thing. Maybe I haven't understood what you meant, but I'm still fairly
sure that you haven't understood OCI.

Foreign Key Constraints : all you have said here is, "if you want to do
it that way you have to tell Oracle". That's not a limitation.

Unique Constraint Violations : the violated constraint is named in the
error message. What's wrong with you?

Large FLOAT and NUMBER Types : "Oracle can do better numeric precision
than us, you'll just have to deal with it in your program."


But then what do I expect? If you just want persistence for your program,
buy a persistence tool. You have no idea why relational databases were
invented, you think your program is more important than the data it
processes, you do not understand the concept of efficient data storage
in the presence of diverse retrieval requirements, and if there was a
fashion for shoes without soles you would wear them and blame the ground
for being uneven.

Eric

--
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On Thu, 08 Dec 2011 23:47:47 +0000, Eric wrote:
Eric, you are brilliant!



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http://mgogala.byethost5.com

On 2011-12-11, Mladen Gogala <gogala.mladen (AT) gmail (DOT) com> wrote:
Thankyou.

Eric

--
ms fnd in a lbry