SQL Server 2014, due out late this year, has an in-memory capability for online transaction processing (OLTP) with table-level granularity and doesn't require expensive hardware like other in-memory databases, according to Microsoft.
Microsoft announced SQL Server 2014 at its TechEd conference in New Orleans this week. A technology preview download will be available this month, and the database is expected to be generally available in late 2013. Redmond had already said last fall that in-memory would be a feature of the next version and previewed it during the Professional Association for SQL Server (PASS) Summit in Seattle under the codename "Hekaton." What's new this week is Microsoft's announcement of the release date.