And that's where SQL Server's In-Memory OLTP (online transaction processing ... First, memory-optimized tables don't support clustered indexes, the typical default for a table's primary key. You have ...

Cascading referential integrity constraints are foreign key constraints that tell SQL Server to perform ... sometimes affecting several tables that were related to the primary key table.

Related enhancements include LOB data types and Indexes with NULLable key columns in memory-optimized tables. Other highlights of the new CTP listed by Microsoft include: Programmability improvement ...