Thread:Project:Support desk/Syntax errors after installation when accessing the mainpage. Database: Oracle/reply

While MediaWiki claims it supports variousdatabase engines, the true story here is that it's only tested on mysql, and most changes subbmited to code don't test those database engines.

I suspect that's a bug, and you should report it.

In the meantime, you may try an older MediaWiki version like 1.22 to see if those errors aren't present.