1. Impact of SQL Server 2005 on Application Architecture Eric Nelson Application Architect Microsoft Ltd http://blogs.msdn.com/ericnel Eric.Nelson@microsoft.com

2. Agenda Hot News – 7 New Products If we have time … SQL Server 2005 Application Architecture

3. The New Server Lineup … Microsoft SOA Broker - Data Edition 'Secure and scaleable data-centric web services for the enterprise' Microsoft XML Database Server 'Delivering XML at the heart of your Enterprise' Microsoft Application Server.NET 'Secure and scaleable application server for the 21 st century' Microsoft ETL Server 'The data consolidator for the Enterprise' Microsoft Diamond Reports Server 'A diamond amongst crystals' Microsoft Insight OLAP Server 'Changing data into insight for the knowledge worker' Microsoft Deep Thought Server 'A new breed of data server' NB: Names are with legal and may change (in about 10mins )

4. SOA Broker – Data Edition Internet SQL Database SOA Broker (No IIS) Clients High-speed Data Connect SOAP

5. XML Database Server Clients XML SQL Database Relational Data XML XQuery

6. Application Server.NET.NET Framework 2.0 Clients High-speed Data Connect SQL DB2 Oracle WebService Server (No IIS) XML Database Server XML Code

7. Microsoft ETL Server ETL Server Cleanses Combines Aggregates Sources SQL DB2 Oracle XML Destinations SQL DB2 Oracle XML J Smith 36 Mr John Smith, Old, Happy John Smith Male John Smith Married

8. Diamond Reports Server Rich Client Data SOAP/ http Sources SQL DB2 Oracle XML Tiff, PDF, XLS, CSV… Browser

9. Insight OLAP Server Excel Data OLTP System Complex Queries Insight OLAP Server Cube OLTP System OLTP System OLTP System Browser 3 rd Party 'I need to know the average increase year on year for each sales person, each department, each office, each country for 1993 to 1996 for widget x and y and z – but only include sales of the large versions in red'

10. Deep Thought Server (codename) Deep Thought Server Data Question: 'Is there anything interesting in this data about my sales?' Answer: 'Yep, employees who live close and do not drive are delivering very few sales on Friday afternoons.' OLTP System OLTP System OLTP System OLTP System 42

11. Suite SKU Suite SKU includes a licence for all 7 products Single Media Single Install And as an introductory offer, the Suite SKU comes with the new more scaleable, more secure, more manageable … SQL Server 20005 RDBMS for FREE!!!!!!!!!!!!!!!!! Single Media Single Install

12. Breaking News – Final Product Names Announced SQL Server 2005 Web Services and SQL Server 2005 Service Broker alias 'Microsoft SOA Broker - Data Edition' SQL Server 2005 XML Data Type and FOR XML Alias 'Microsoft XML Database Server' SQL Server 2005.NET Framework Stored Procedures, Triggers and User-Defined Types Alias 'Microsoft Application Server.NET' SQL Server 2005 Integration Services Alias 'Microsoft ETL Server' SQL Server 2005 Reporting Services Alias 'Microsoft Diamond Reports Server' SQL Server 2005 Analysis Services Alias 'Microsoft Insight OLAP Server' SQL Server 2005 Data Mining Alias 'Microsoft Deep Thought Server'

13. SQL Server 2005 can significantly impact the Architecture of Applications

14. Consider Application Architectures … One extreme VB6 All the code SQL Server 2005 No code All data stored as relational or blobs TDS

15. Internet Consider Application Architectures … Another extreme Winform Client or WebForm Client talking SOAP SQL Server 2005 Question: How many tables in an XML database? 100%.NET Code Exposed as Web Service All data stored as XML

16. Drill down into New Technologies which Affect Application Architecture

17. Agenda Storage XML Data Type Programming CLR Integration SOA Web Services Query Notifications Service Broker Which maps back to … SQL Server 2005 XML Data type and FOR XML Alias 'Microsoft XML Database Server' SQL Server 2005.NET Framework Stored Procedures, Triggers and User-Defined Types Alias 'Microsoft Application Server.NET' SQL Server 2005 Web Services and SQL Server 2005 Service Broker Alias 'Microsoft SOA Broker - Data Edition'

18. Storage

19. XML Datatype Native SQL type Use for column, variable or parameter Can represent: XML 1.0 documents XML 1.0 fragments (0 to n element nodes and text nodes at top) Can be constrained by XML Schema collection Queryable with XQuery Updateable with XML-DML XML Indexing Well-formed and validation checks Impact Allows XML Data to be stored, manipulated and retrieved easily with SQL Server 2005 WARNING: Not everything should be XML!

20. Programming

21. .NET Integration Choice of programming language TSQL, for data-intensive functions and procedures.NET languages, for CPU-intensive functions and procedures Safe, scalable, modern execution environment inside database Choice of where to run logic Database, for logic that runs close to data Mid-tier, for logic that scales out Symmetric data access model – ADO.NET

22. .Net Integration Business Logic User-Defined Functions Scalar Table Valued User-Defined Procedures User-Defined Triggers Assemblies Unit of encapsulation, deployment Impact Allows complex algorithms to be coded and maintained in a modern programming language Allows 'middle tier' code to run very near the data WARNING: Does NOT mean replace all TSQL with.NET code

23. .Net Integration Extensibility User-Defined Types Complex structure and behaviour Custom attributes, contract Supported in client libraries User-Defined Aggregates Extensibility hook into the Query Processor using a well-defined contract Initialise a group, accumulate a value, merge groups, finish computation, return result Impact Can extend the database to better meet your solutions needs WARNING: Not an Object Oriented Database

24. SOA

25. Services, SO, and SOA Service – An endpoint that reacts to messages Service Orientation – An architectural paradigm that employs the following four tenets: Boundaries are explicit Services are autonomous Services share schema and contract, not class Service compatibility is determined based on policy Service Oriented Architecture (SOA) – Any architecture the adheres to the Four Tenets of Service Orientation

26. SQL Server 2005 provides the key infrastructure for Service- Oriented Architectures (SOA) Direct Web Services access to SQL Server (HTTP/SOAP) Service Broker – Service based, decoupled, asynchronous, reliable, distributed messaging Query Notifications – Enabling responsive multi-tier data backed caches Web Clients Highly Responsive, Data-Caching Mid-Tier Legacy Non- Windows System Queries with Notifications Service based transactional workflow SQL requests via HTTP/SOAP Service-Oriented Architectures

27. SQL Web Services Native SOAP access Standards-based access to SQL Server No client dependency Improved Interoperability New 'ENDPOINT AS HTTP' object Configure connection info Configure authentication Expose Functions & SPs Expose TSQL Batches Impact Easily add Web Services to existing applications Deliver Web Services without the need for IIS/ASP.NET WARNING: Not your 1 st choice http://server1/aspnet/default.aspx http://server1/sql/pubs?wsdl KernelModeListener

28. Query Notifications SQL Server manages cache invalidation Integrated change detection notifies client as soon as results of query changed Deep Query Processor integration No more 'roll-your-own' cache management! Just add a few lines of code to your existing requests ADO.NET OLEDB Leverages Service Broker architecture Impact Enabling easy implementation of highly efficient mid-tier data caching Off-load query workload from the server to caching clients Requests/Responses IIS/ASP.Net Notification of Cache Invalidation Query & Subscription /Results SQL Server 2005

29. Service Broker

30. Framework for building reliable, asynchronous, distributed applications Communication infrastructure Two-way ’dialogues' Reliable delivery to local, remote queues Exactly-once, in-order semantics Large Message Fragmentation Impact Asynchronous messaging becomes 'easy' to add Can handle huge peaks, long lived work with ease WARNING: SQL 2005 to SQL 2005 SQL Engine

31. Conversations and Dialogues Services communicate via formal, reliable sessions known as Conversations Conversations are the basic primitive of communication in SQL Server 2005. There are two types: Dialogues - 1 : 1 communication channel between 2 services Monologues – 1 : N communication channel between a publishing service and subscribing services (not in SQL Server 2005) Dialogues provide two-way messaging between two services Guaranteed delivery Full-duplex or half-duplex communication EOIO delivery May be long-lived (years) or short-lived (seconds) Are lightweight Are sessions (similar to TCP conceptually)

32. Database B Protocol Customer Service Travel Service Endpoint Protocol Adjacent Broker Protocol Adjacent Broker Protocol TDS (Dialogue Semantic here) (Message Fwding here)

33. Conversation Groups Business transactions often involve multiple services collaborating to achieve a common end E.g. Booking a reservation TravelClient Car Airline Hotel 1 2 3 4 5 6 7 8 Conversation Groups: Formalise the relationship between dialogues Have a unique identity Are a serialisable unit in SQL Server. Only one transaction may lock a conversation group at a time Dialogues are always associated with a conversation group, hence only one transaction can lock a dialogue at a time as well

34. Example: Order Entry

35. Example: Parallel SP

36. Summary SQL Server 2005 can have zero impact on application architecture And SQL Server 2005 can impact greatly application architecture Call to action Try SQL Server 2005 today http://msdn.microsoft.com/virtuallabs/sql/default.aspx http://msdn.microsoft.com/virtuallabs/sql/default.aspx Get the trials http://www.microsoft.com/emea/msdn/visualstudio/enxu/getthetrials/ http://www.microsoft.com/emea/msdn/visualstudio/enxu/getthetrials/

37. Resources General articles on what we covered http://msdn.microsoft.com/SQL/2005/servprog/default.aspx XML and Databases whitepapers http://msdn.microsoft.com/XML/BuildingXML/XMLandDatab ase/ http://msdn.microsoft.com/XML/BuildingXML/XMLandDatab ase/ Service Broker http://www.exforsys.com/content/view/1712/356/ http://www.sqlservicebroker.com/

38. © 2003-2004 Microsoft Corporation. All rights reserved. This presentation is for informational purposes only. Microsoft makes no warranties, express or implied, in this summary.