What’s new in SQL Server 2008Thavash GovenderBI Consultant iSolve Business Solutions

GameGameChangersChangers

• Transparent Data Encryption• External Key Management• Data Auditing• Pluggable CPU• Transparent Failover for

Database Mirroring• Declarative Management

Framework• Server Group Management• Streamlined Installation• Enterprise System

Management• Performance Data Collection• System Analysis• Data Compression• Query Optimization Modes• Resource Governor• Entity Data Model• LINQ• Visual Entity Designer• Entity Aware Adapters

SQL Server Change TrackingSynchronized Programming ModelVisual Studio SupportSQL Server Conflict DetectionFILESTREAM data typeIntegrated Full Text SearchSparse ColumnsLarge User Defined TypesDate/Time Data TypeLOCATION data typeSPATIAL data typeVirtual Earth IntegrationPartitioned Table ParallelismQuery OptimizationsPersistent Lookups Change Data Capture Backup CompressionMERGE SQL StatementData ProfilingStar Join

Enterprise Reporting EngineInternet Report DeploymentBlock ComputationsScale out AnalysisBI Platform ManagementExport to Word and ExcelAuthor reports in Word and ExcelReport Builder EnhancementsTABLIXRich Formatted DataPersonalized Perspectives… and many more

Beyond Relational

• FILESTREAM Data Type• Integrated Full Text Search• Sparse Columns• Large User Defined Types• Date/Time Data Type

• Location Data Type• Spatial Data Type• Virtual Earth Integration

BeyondBeyondRelationalRelational

Beyond Relational

• FILESTREAM Data Type• Integrated Full Text Search• Sparse Columns• Large User Defined Types• Date/Time Data Type

• Location Data Type• Spatial Data Type• Virtual Earth Integration

BeyondBeyondRelationalRelational

Store and Consume Store and Consume Any Type of DataAny Type of Data

Beyond Relational

• FILESTREAM Data Type• Integrated Full Text Search• Sparse Columns• Large User Defined Types• Date/Time Data Type

• Location Data Type• Spatial Data Type• Virtual Earth Integration

BeyondBeyondRelationalRelational

Store and Consume Store and Consume Any Type of DataAny Type of Data

Deliver Location Deliver Location IntelligenceIntelligence

Dynamic Development

• Entity Data Model• LINQ• Visual Entity Designer• Entity Aware Adapters• SQL Server Change Tracking• Merge SQL Statement

• Synchronized Programming Model• Visual Studio Support• SQL Server Conflict Detection

DynamicDynamicDevelopmentDevelopment

Comparison – Beyond Relational

• XML Data Type and Functions

• XML UpgradesXML

SQL Server SQL Server 20052005

SQL Server SQL Server 20082008

• Large UDTs• Flexible Columns• Wide Tables• Filtered Indices• HierarchyID

Relational Data

• User Defined Types

Spatial

• Fully supported Geometry and Geography data types and Functions

• Full Text IndexingDocuments & Multimedia

• Remote BLOB Store API• FILESTREAM• Integrated FTS

FileStreams

• Storage Attribute on VARBINARY(MAX)• Unstructured data stored on file system• Dual Programming Model

• TSQL (Same as SQL BLOB)• Win32 Streaming APIs with T-SQL

transactional semantics• Data Consistency and Transactions• Integrated Manageability• SQL Server Security Stack

Spatial Data• Spatial Data is about mapping …. • Many applications make very direct use of

mapping.• The map may very well be the primary output

of these applications• Examples:

– Consumer mapping products (Virtual Earth, etc.)– Cadastral mapping– Utility (electrical / water / gas) grid layouts– Business geographics

Beyond Mapping

• Many applications may make use of spatial data, even if they do not explicitly make maps.

• Examples:– Send warehouse pickers on efficient runs– Predict bus arrival times– Applying for building variances– Your favorite LOB app here

What is Spatial Data ?

• Vector– Points– LineStrings– Polygons (Areas, Regions)

• Raster– Satellite Imagery– Digitized Aerial Photos

Example

SELECT *FROM roads WHERE roads.geom.Intersects(@ms)=1

Which roads intersect Microsoft’s main campus?

Example Code

• Create an instance:declare @g geographyset @g = geography::Parse(‘POINT(47.6456 -122.12551)’)

• Create a table:create table T(id int, region geography)

• Select some dataselect *from Twhere region.STIntersects(@g) = 1

What’s new for developers ?

• ADO.NET Data Entities• New T-SQL statement : MERGE• Table-Valued-Parameters• GROUPING SETS• New data types / storage options :

– HierarchyID– User-Defined-Types (CLR) (Unlimited size)– DATE / TIME / DATETIME2 /

DATETIMEOFFSET

Enhanced Date and Time Types• Problems with existing types1.Application Complexity and storage cost

when only date or time is used. 2.Narrow Ranges 3.Lack of time zone awareness limit

scenarios. Existing Type Accuracy Date / Time Range

SmallDateTime 1 Minute 1900-1-1 to 2079-6-6

DateTime 3.33 milliseconds 1753-1-1 to 9999-12-31

DATE / TIME • DATE

– January 1st, 0001 A.D. December 31st, 9999– Precision : 1 day– Storage : 3 bytes

• TIME– 00:00:00.0000000 (midnight)

23:59:59.9999999– Precision : default is 7 decimal places (100 ns)– Storage : 3 – 5 bytes, depending on precision

DateTime2• January 1st, 1 A.D. December 31st, 9999

23:59:59.9999999• Precision : 100 ns, up to 7 decimal places (default)• Storage : 6 – 8 bytes, depending on precision• New system functions that return DATETIME2

values:– SYSDATETIME()– SYSUTCDATETIME()

• New arguments for DATEPART, DATEDIFF:– MICROSECOND– NANOSECOND

DateTimeOffset• Jan. 1st, 1 A.D.

Dec. 31st, 9999 23:59:59.9999999 +- 14:00• Precision : like others, 100 ns (7 decimal places)• Storage : 8 – 10 bytes, depending on precision• New system functions / arguments:

– SYSDATETIMEOFFSET()– SWITCHOFFSET()– TODATETIMEOFFSET()– DATENAME(TZOffset, <value>)

• Now we can centrally store local time information and still report using UTC, without any elaborate schema changes

Enhanced Date and Time Types

•DateTimeOffset additionally stores time zone offset from UTC.

HierachyID• System data type,variable

length– CLR UDT– Microsoft.SqlServer.Types– Compact Varbinary

encoding• Represent position in

hierarchy• Logically encodes

information about a single node in a hierarchy tree by encoding the path from the root of the tree to the node

• Rich built-in methods for manipulating hierarchies

• Simplifies storage and querying of hierarchical data

• Support for arbitrary insertions and deletions

Table Valued ParametersExisting solutions to an old problem• Pivoting large numbers of stored procedure

parameters– Complex application and stored procedure code

• Bulk inserting to temporary tables out-of-band– Limited ability to apply business logic

• Leveraging parameter arrays in client applications– Non-optimal performance for large data volumes

Demo – Table Valued Demo – Table Valued ParametersParameters

Merge• UPSERT and then some (also supports

DELETE)• Allows you to process multiple changes (e.g.

from a staging table) in a single statementMERGE <target> USING <source>ON (<join condition>)WHEN MATCHED [AND…] THEN…WHEN NOT MATCHED THEN…WHEN SOURCE NOT MATCHED THEN…

Demo – The Merge Demo – The Merge StatementStatement

Management Challenges• Huge number of features with each new

release• Data Centre and Server Consolidation –

more apps per server , more mission critical apps per data centre.

• Remote Management• You want to “lock down” SQL just like any

other environment, according to your company policies.

Declarative Management• What is Declarative Management:

• A new policy-based management framework for the SQL Server Database Engine

• Declarative Management Benefits:• Ensure compliance with policies for

system configuration• Prevent/monitor changes to the system

by authoring policies for the desired configuration• Scale management across multiple servers• Reduce total cost of ownership by simplifying

administration tasks

Demo – Declarative Demo – Declarative ManagementManagement

Reporting Services• New Tool – Report Designer• Improved Data Pane• Enhanced design experience – snap to

lines , zoom etc. • Dundas gauges and maps for charting ! • No need for IIS • Performance improvements• Report Builder improved too !

Simplified SQL 2005 Reporting Services Architecture

Windows Server OS

Internet Information Server Service Manager

ASP.Net

Report Processor

Report Models

Extensions

ReportMgr Web

AnotherWeb

Report Proc

Report Models

Extensions

Scheduling

Subscrip / Deliv

DB Maint

Report Server Web

Report Server Service

Simplified SQL 2008Reporting Services Architecture

Windows Server OS

IIS Service Manager

ASP.Net

AnotherWeb

“On Demand”Report Proc

Report Models

Extensions

Scheduling

Subscrip / Deliv

DB Maint

SQL OS – Network, CLR, ASP.Net

Memory Management

Report Mgr UI

Extensions

Report Manager Report Web Service Background Processing

Single Reporting Services Process Boundary

Paging

Demo – Report DesignerDemo – Report Designer

What’s new in SSIS ?

• New Script environment - VS shell • C# as a language !!! • Can reference all .NET assemblies• Enhanced SQL statements eg. Merge• New Data Types eg. Date, Time ,

DateTime2• New Wizards are much smarter !

What’s new in Analysis Services• New Attribute Relationship Designer• Cube – improved Auto Build algorithm• Simplified and Enhanced Dimension Wizard• Backup and Restore Improvements• Core Engine Performance Improvements• New Server Infrastructure for Resource

Monitoring and Stats Collecting• MOLAP writeback• And many more.......!!!!

Resources

• My blog • http://thavash.spaces.live.com/blo

g

• Microsoft • www.microsoft.com/sql/2008/learni

ng/webcasts.mspx

Thank you

http://www.microsoft.com/southafrica/ucs/2007