The document discusses new features in SQL Server 2008 including spatial data support, geography and geometry data types, table value parameters, date and time enhancements, and the MERGE statement. It also covers SQL CLR, reporting services, entity framework, and Visual Studio integration.

1. Dave Bost Developer Evangelist http://davebost.com/blog http://twitter.com/davebost

2. SQL Server Spatial support T-SQL Enhancements Visual Studio integration SQL CLR Reporting Services

3. SQL Server database development .NET Framework application development Visual Studio 2008 Windows Presentation Foundation ASP.NET Microsoft Virtual Earth OpenGIS

4. SQL Server 2008 New features Enhancements Programming Demos!

5. Spatial data represents locations Which properties overlap? Which roads intersect property or each other? How many stores/restaurants/houses/car dealerships are located within a geographical area? Represented by two primary data types Geometry: small areas where curvature of the Earth isn’t so relevant when making calculations Flat Earth model X, Y coordinates Geography: large areas where the curvature of the Earth does matter when making calculations Round Earth model Latitude and longitude coordinates You query for location information as you would any SQL Server data type Data types dictated by the OpenGIS standard Calculations easy to perform (“black box”)

6. Geospatial data in SQL Server Stored in a proprietary binary format Can be input using simple text Parse methods exist to convert the text into the internal storage format Represents areas using Points Linestrings Polygons MultiPoints MultiLinestrings MultiPolygons GeomCollections Polygonal areas must be defined in counter-clockwise direction Interior areas (“holes”) must be defined in clockwise direction Inherently support various calculations and methods Spatial Reference ID (SRID) identifies ellipsoid used (flat/round, meters/feet) Only instances with like SRID can be directly compared

7. GEOGRAPHY type has additional requirements Coordinate order is longitude/latitude A single GEOGRAPHY object cannot span more than a logical hemisphere Will throw exceptions if too large

9. Table Value Parameters New Date/Time types Time zone awareness New MERGE keyword New shorthand notation

10. TVPs are used to insert/update multiple tables at one time Multiple tables can be inserted/updated within a single transaction MARS-like capability for writing ADO.NET updated to include support New parameter type: SqlDbType.Structured

11. Several new types added datetime2 date time datetimeoffset New functions added CONVERT SYS* Functions DATEDIFF

12. MERGE allows for insert, update, delete with one keyword Merge two tables, source and target Target table will be modified based on contents of source table Syntax and use can be complex! Be sure to review SQL Server Books Online for more details

13. Allows you to declare a variable and assign a value in one line of code More like contemporary programming languages, C# or Visual Basic .NET

14. Allows you to declare a variable and assign a value in one line of code More like contemporary programming languages, C# or Visual Basic .NET

16. Enhanced project types Analysis Services Reporting Services Entity Framework

17. Essentially an OR/M tool Models relational data using entities Can model any relational data source for data access (provider may be required) Application-specific domain You can work at a higher level of abstraction Appropriate amount of information returned Lazy-loaded What is an entity? Structurally like an object Has scalars and relationships Has identity Represent nouns in your application domain Not tied specifically to SQL Server

19. SQL Server has the ability to execute managed code Stored procedures Functions Aggregates Table value functions User-defined types Triggers Visual Studio can manage both creation and deployment SQL CLR is “off by default” for security reasons Must activate per database to enable Can be remotely debugged With great power comes great responsibility Your code executes in the SQL Server processing stream

20. Visual Studio provides templates for the various SQL CLR constructs Uses Database project type Simply “add new” like any other item you might add Metadata controls SQL Server behavior Attributes control programmatical type Microsoft.SqlServer.Server.SqlProcedure Microsoft.SqlServer.Server.SqlFunction Microsoft.SqlServer.Server.SqlUserDefinedAggregate Microsoft.SqlServer.Server.SqlTrigger Microsoft.SqlServer.Server.SqlUserDefinedType You write your logic using a .NET-supported language You work with other objects in the Microsoft.SqlServer.Server namespace to retrieve and return data Very ADO.NET-like, but not ADO.NET Can be assigned security levels Safe, External, Unsafe

22. SQL Server standard for reporting Managed enterprise reporting Ad-hoc reporting Embedded reporting Web-based reporting Reports can be formatted in a variety of ways PDF Word 2007 HTML Reports are exposed via a Web Service Can be integrated with SharePoint Dependency on IIS removed (uses http.sys) Strong designer and wizard support in Visual Studio Enhanced configuration and administration tool

23. Design reports in Visual Studio 2008 SP1 Query for data Assign query results to report Design report style Colors Fonts Deploy report Web Service SharePoint Services Wizard available for initial report design

25. Visit MSDN at msdn.microsoft.com Visit the url below for additional information http://msdn.microsoft.com/sql http://www.codeplex.com/SQLServerSamples http://www.codeplex.com/MSFTDBProdSamples

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29. Dave Bost thank you! http://davebost.com/blog http://twitter.com/davebost http://thirstydeveloper.com

30. http://thirstydeveloper.com “ Looking at someone’s code, but with audio”

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