In-Memory OLTP Enhancements for SQL Server 2016

SQL Server

As more information becomes available about the new SQL Server 2016 release, we’ll try to provide it here. In this article from Aaron Bertrand on the changes in store for In-Memory OLTP, we get a handy chart to compare features between SQL Server 2014 and 2016.

Feature/Limit SQL Server 2014 SQL Server 2016
Maximum size of durable table 256 GB 2 TB
LOB (varbinary(max), [n]varchar(max)) Not supported Supported*
Transparent Data Encryption (TDE) Not supported Supported
Offline Checkpoint Threads 1 1 per container
ALTER PROCEDURE / sp_recompile Not supported Supported (fully online)
Nested native procedure calls Not supported Supported
Natively-compiled scalar UDFs Not supported Supported
ALTER TABLE Not supported
(DROP / re-CREATE)
Partially supported
(offline – details below)
DML triggers Not supported Partially supported
(AFTER, natively compiled)
Indexes on NULLable columns Not supported Supported
Non-BIN2 collations in index key columns Not supported Supported
Non-Latin codepages for [var]char columns Not supported Supported
Non-BIN2 comparison / sorting in native modules Not supported Supported
Foreign Keys Not supported Supported
Check/Unique Constraints Not supported Supported
Parallelism Not supported Supported
OUTER JOIN, OR, NOT, UNION [ALL], DISTINCT, EXISTS, IN Not supported Supported
Multiple Active Result Sets (MARS)
(Means better Entity Framework support.)
Not supported Supported
SSMS Table Designer Not supported Supported

* LOB support will not be available in the CTP shipping this summer.

ALTER TABLE is an offline operation, and will support adding/dropping columns, indexes, and constraints.

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