Please have a look at the GPL www.sapdb.org
They have a Oracle 7 mode. This might make porting more easy and quick.
Furthermore the database is developped by 100 fulltime pro's at SAP and released as GPL.
did you actually try to run sapdb?
I'd be very interested on seeing someone running it
successfully. With one of the predecessors,
Adabas-D v 6.something, I wasn't exactly happy at
the time, but per specs this beast should be an
equal to Oracle (comparing features, performance
and TCO :) ).
As the PostgreSQL port is under way, that might be a candidate for the next port.
I have managed to get SapDB running relatively easily on Linux Mandrake 8.2.
However, although there it has an Oracle mode, it still doesn't support objects such as packages and procedures. These would still need to ported.
Is it an ability to get a (+) style outer join only or something else? If there is no real PLSQL procedure support, it doesn't really matter if there is a so-called "compatibility" or no...
With Oracle 9, Oracle is (finally) ANSI compatible by supporting the INNER JOIN, RIGHT/LEFT OUTER JOIN, COALESCE, CASE, etc.
We are changing the code - making it PostgreSQL compatible - but Oracle 7 incompatible.
please understand that Sap DB is a very old piece of code and dificult to hack in http://developers.slashdot.org/comments.pl?sid=37305&cid=4011492
currently I guess there're 2 approx:
-finish Pg port using the Jorg approx about a translation from the Oracle code, where only its need a real hack for the Procedures without parsing values, right ?
-using a DB framework over JBoss (ofbiz approx)
Unfortunately that discussion is closed, so...
Either someone gets a grip on the special SAP build tools,
or someone makes a big effort and adapt the whole project
into using customary tools. As I understand the discussion
mentioned above, SAPDB is far away from all common
coding and build practices, so anyone taking it on would
have to do a lot of work, no matter where they're headed.
My guess is that SAPDB is too complicated for most
users out there, and that the Oracle7 mode isn't going
to help _that_ much since Oracle is moving onwards, too.
Forget about their 100 men working full-time. This is BS.
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