I have seen the following new T-SQL features:
1. In-memory OLTP tables.
2. Inline specification of CLUSTERED and NONCLUSTERED indexes is now allowed for disk-based tables.
3. The SELECT … INTO statement is improved and can now operate in parallel.
Any others? Thanks.
Kalman Toth Database & OLAP Architect Free T-SQL Scripts
New Book / Kindle: Exam 70-461 Bootcamp: Querying Microsoft SQL Server 2012