SQL Server 2014 includes several new features including in-memory OLTP, natively compiled stored procedures, and enhancements to backup and restore. It also improves integration with Azure and includes new T-SQL enhancements. The speaker is a database administrator providing a high-level overview of the key new capabilities in SQL Server 2014 without going into detailed demonstrations.

1. SQL Server 2014
What’s new?

2. Purpose
High level overview of new features
NOT a deep dive
NOT a demo session
Where to learn more

3. About Me
● Manager of team of DBA’s for financial
services company
● Former Data Architect, DBA, developer
● Designed system that analyzes nearly 1
billion rows of data per day
● AtlantaMDF Chapter Leader

4. Enhancements

5. In-Memory OLTP
Substantive change in database development
http://goo.gl/lirjxr
Affects tables, stored procs, server design
Enterprise Edition only
Hekaton

6. Hekaton

7. Hekaton

8. In Memory Table
-- create a durable (data will be persisted) memory-optimized table
-- two of the columns are indexed
CREATE TABLE dbo.ShoppingCart (
ShoppingCartId INT IDENTITY(1,1) PRIMARY KEY NONCLUSTERED,
UserId INT NOT NULL INDEX ix_UserId NONCLUSTERED HASH WITH
(BUCKET_COUNT=1000000) ,
CreatedDate DATETIME2 NOT NULL,
TotalPrice MONEY
) WITH (MEMORY_OPTIMIZED=ON)
GO
http://goo.gl/O8GNKt

9. In Memory Table
/* create a non-durable table. Data will not be persisted, data loss if
the server turns off unexpectedly */
CREATE TABLE dbo.UserSession (
SessionId INT IDENTITY(1,1) PRIMARY KEY NONCLUSTERED HASH WITH
(BUCKET_COUNT=400000) ,
UserId INT,
INDEX ix_UserId NONCLUSTERED HASH (UserId) WITH (BUCKET_COUNT=400000)
)
WITH (MEMORY_OPTIMIZED=ON, DURABILITY=SCHEMA_ONLY)
http://goo.gl/MNfkwl

10. Hekaton

11. In Memory Table - DONT’s
Not all column types are supported (LOB’s)
No IDENTITY() (use SEQUENCE)
No ALTER TABLE
Index limitations
http://goo.gl/IwIMVR

12. Natively Compiled Stored Procedure
create procedure dbo.OrderInsert(@OrdNo integer, @CustCode nvarchar(5))
with native_compilation, schemabinding, execute as owner
as
begin atomic with
(transaction isolation level = snapshot,
language = N'English')
declare @OrdDate datetime = getdate();
insert into dbo.Ord (OrdNo, CustCode, OrdDate) values (@OrdNo,
@CustCode, @OrdDate);
end

13. NCSP - DONT’s
No use of non-Hekaton tables
No CURSORs
No CASE; use IF instead
No OPEN…
http://goo.gl/IwIMVR

14. Server Design
256 GB “limitation” per database
More in-memory OLTP? Add more memory!
Two Sockets for CPU
64-Bit OS
No ALTER database to remove Hekaton
http://goo.gl/4wzAxv

15. Hekaton - deep dive
Several presentationsblogs
http://goo.gl/B1bUPB
http://goo.gl/VZmdA1
http://goo.gl/zAIbxG
http://goo.gl/00CCW6

16. SSD Buffer Pool Extension
Extend your existing buffer pool to SSD
NOT Hekaton compatible
Available in Standard & Enterprise editions
http://goo.gl/FwA5GE

17. Backup & Restore Enhancements
Encryption! (Compression works)
Backup to URL
Backup to Windows Azure

18. Azure integration
SQL Server data files in Windows Azure
SQL Server hosted in Azure VM

19. T-SQL enhancements
SELECT...INTO parallelism
Incline creation of indexes
CREATE TABLE dbo.SalesOrder
(
SalesOrderID INT IDENTITY(1,1),
CONSTRAINT PK_SalesOrder_SalesOrderID PRIMARY KEY CLUSTERED
(SalesOrderID),
OrderNumber CHAR(8) NOT NULL,
-- [New] This will create a non-unique index on (OrderDate)
OrderDate DATE NOT NULL INDEX IX_SalesOrder_1 NONCLUSTERED
);

20. Business Intelligence
BIDS → SSDT-BI
Visual Studio 2012/2013 compatible
PowerView for MultiDimensional Models *
* introduced in SQL 2012 SP1

21. Is it worth the upgrade?
No real changes to licensing
Hekaton is compelling
● SSMS 2014 has AMR tool
● Determine if current application will benefit
Requires investment in appropriate hardware

22. Is it worth the upgrade?
SSD Buffer Pool is compelling
For non-Hekaton applications, can boost speed
Relatively easy to spin up
Integrates with Azure

23. Questions?
stuart@codegumbo.com
twitter: @codegumbo
What’s New in SQL Server 2012?
http://goo.gl/PkAL9