Mary,

It sounds like you don't have much of a choice about this decision, butů

For fun, I did a quick graph of wikis that are NOT using mysql in WikiApiary. You can see it here.

http://wikiapiary.com/wiki/Statistics/Database_types

31 out of 5,370 wikis use something other than MySQL, and 25 of those are Postgres.

(Perhaps this is information that you could use to change this direction?)

Bitnje Wiki is the only one that shows as using Oracle.

http://wikiapiary.com/wiki/BitnjeWiki

Just sharing as maybe you could reach out to them and see how their experience is.

On May 9, 2013, at 11:17 AM, "Beebe, Mary J" <BeebeM@battelle.org> wrote:

I sent this same question to wikitech-l@lists.wikimedia.org and got a positive response about core code. 
 
We have to switch our database from mysql to Oracle or msSql.  We notice that there is a  DatabaseOracle.php and DatabaseMssql.php in the db folder.  Is Oracle or MsSQL supported well with the smw extensions?
 
Below are our current versions:
MediaWiki -  1.15.3
PHP 5.2.8 (cgi-fcgi)
MySQL - 5.5.19
 
These are the main smw extensions that we use:
Semantic Compound Queries 0.3.1
Semenatic Forms 2.3.2
Semenatic Internal Objects 0.6.7
Semantic Maps and Maps 0.7.7
Semantic Results Formats 1.5.3
 
We know we are not current with our version.  We will be switching to whichever versions that works the best with Oracle or MsSQL.
 
Could you also point me to documentation on the databases? 
Which would any of you recommend?  MsSQL or Oracle.  We have a little experience with both. Both should be available for us.  
 
Thanks,
 
Mary Beebe
Battelle - Charlottesville, VA
Office: 434- 951-2149
 
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