In the ERP world, there are three database platforms that ERP software companies focus around: Oracle, MS SQL, and Progress. The up and coming database in the Open Source world is MySQL. According the the linked article, Marten Mickos, CEO of MySQL has spoken up about his database and ERP, essentially saying that SAP will run MySQL.
It is interesting that most open source ERP applications are using Oracle or Postgresql. Compeire and TinyERP for example use these databases, but not MySQL. They for some reason have chosen not to go that route. So if SAP is getting behind MySQL, it will be interesting to see how that will change the market of ERP, especially open source ERP systems.