1. Overview SQL Server 2008 Overview Presented by Tarek Ghazali IT Technical Specialist Microsoft SQL Server MVP, MCTS Microsoft Web Development MCP ITIL V3 Foundation Certified © 2009 Tarek Ghazali. All rights reserved.

2. What is new in SQL Server 2008 More powerful management More powerful management –Policy Management feature Improved performance and scalability Improved performance and scalability –Storing high volume of data –Support for diverse types of data Better security and availability Better security and availability –Security increased by data encryption –Availability increased by database mirroring Changes for developers Changes for developers

3. LINQ (Language Integrated Query) LINQ enables database developers to issue queries against a database using a.NET-based programming language instead of the normal T-SQL statements. LINQ enables database developers to issue queries against a database using a.NET-based programming language instead of the normal T-SQL statements.

4. LINQ (Language Integrated Query) (Cont.) SQL Server 2008 enhances LINQ by providing a new LINQ to SQL provider that allows developers to issue LINQ commands directly against SQL Server tables and columns SQL Server 2008 enhances LINQ by providing a new LINQ to SQL provider that allows developers to issue LINQ commands directly against SQL Server tables and columns This will reduce the amount of time it takes to create new data queries This will reduce the amount of time it takes to create new data queries

5. Enhancement of T-SQL Statements MERGE statement: It allows the developer to check for the existence of data before trying to insert the data. MERGE statement: It allows the developer to check for the existence of data before trying to insert the data. Allows you to merge two tables together based on a set of criteria Allows you to merge two tables together based on a set of criteria Useful for synchronizing data Useful for synchronizing data Great for consolidating in a Data Warehouse Great for consolidating in a Data Warehouse

6. Enhancement of T-SQL Statements (Cont.) No longer it is necessary to create complex joins in order to update data that exists and to insert data that does not already exist, all during a single statement. No longer it is necessary to create complex joins in order to update data that exists and to insert data that does not already exist, all during a single statement.

7. Table Valued Parameters (TVP) TVP's make possible to use a "table" as a parameter for a procedure TVP's make possible to use a "table" as a parameter for a procedure Limitations: Limitations: 1.TVP's can only be READONLY in the procedure that define them as a parameter 2.Can only be used as an input parameter. 3.Apart from this the same rules apply to TVP's as to table variables for example no DDL can be executed against a TVP and no statistics are kept for TVP's.

8. Data Compression Works on tables and indexes Works on tables and indexes Works on clustered and non- clustered indexes Works on clustered and non- clustered indexes Compression types: Page and Row Compression types: Page and Row T-SQL extensions to Table and Index DDL T-SQL extensions to Table and Index DDL

9. Data Compression (Cont.) CREATE TABLE... [WITH ( [,...n])] :={ DATA_COMPRESSION = {NONE|ROW|PAGE}[ON PARTITIONS ({ | } [,...n])] CREATE TABLE... [WITH ( [,...n])] :={ DATA_COMPRESSION = {NONE|ROW|PAGE}[ON PARTITIONS ({ | } [,...n])] New SP to estimate cost savings New SP to estimate cost savings sp_estimate_data_compression_savings sp_estimate_data_compression_savings

10. New Datatypes Date and Time Datatypes DATE – a date only type (precision 1 day) DATE – a date only type (precision 1 day) TIME – a time only type (precision 100 nano seconds) TIME – a time only type (precision 100 nano seconds) DATETIMEOFFSET –a time zone aware datetime type (precision 100 nano seconds) DATETIMEOFFSET –a time zone aware datetime type (precision 100 nano seconds)

11. Date and Time Datatypes (Cont.) DATETIME2 – a datetime type with larger fractional seconds and year range than the existing DATETIME type (precision 100 nano seconds) DATETIME2 – a datetime type with larger fractional seconds and year range than the existing DATETIME type (precision 100 nano seconds)

12. HierarchyId: New datatype Enables database applications to model tree structures in a more efficient way than currently possible Enables database applications to model tree structures in a more efficient way than currently possible Stores values that represent nodes in a hierarchy tree Stores values that represent nodes in a hierarchy tree Implemented as a CLR UDT that exposes several efficient and useful built-in methods for creating and operating on hierarchy nodes Implemented as a CLR UDT that exposes several efficient and useful built-in methods for creating and operating on hierarchy nodes

13. Spatial Datatypes Geography datatype Geography datatype Round Earth geospatial model Round Earth geospatial model Define points, lines, and areas with longitude and latitude Define points, lines, and areas with longitude and latitude Account for planetary curvature and obtain accurate “great circle” distances Account for planetary curvature and obtain accurate “great circle” distances

14. Spatial Datatypes (Cont.) Geometry datatype Geometry datatype –Planar (“Flat Earth”) geospatial model –Define points, lines, and areas with coordinates –Use for localized areas or non-projected surfaces Both types provide static and instance methods Both types provide static and instance methods –Calculate distances, find intersections, etc.

15. FILESTREAM datatype Stores data in the File System but, allows it to be queried via normal T- SQL Stores data in the File System but, allows it to be queried via normal T- SQL Allows easy transition between relational and non-relational data, so application can access documents as data Allows easy transition between relational and non-relational data, so application can access documents as data Under the covers uses the Win32 APIs to speed streaming of data. Under the covers uses the Win32 APIs to speed streaming of data.

16. FILESTREAM datatype Stores data in the File System but, allows it to be queried via normal T- SQL Stores data in the File System but, allows it to be queried via normal T- SQL Allows easy transition between relational and non-relational data, so application can access documents as data Allows easy transition between relational and non-relational data, so application can access documents as data Under the covers uses the Win32 APIs to speed streaming of data. Under the covers uses the Win32 APIs to speed streaming of data.

17. FILESTREAM datatype (Cont.) Allows developers Use T-SQL SELECT/INSERT/UPDATE/DELETE statements to query or modify FILESTREAM data Allows developers Use T-SQL SELECT/INSERT/UPDATE/DELETE statements to query or modify FILESTREAM data Data stored outside of the database on more cost-effective storage without comprising features for accessing such data. Data stored outside of the database on more cost-effective storage without comprising features for accessing such data.

18. New Security Features SQL Server 2005 introduced data security in the form of data encryption SQL Server 2005 introduced data security in the form of data encryption With SQL Server 2008, encryption is greatly enhanced with the introduction of two features: Extensible Key Management and Transparent Data Encryption With SQL Server 2008, encryption is greatly enhanced with the introduction of two features: Extensible Key Management and Transparent Data Encryption

19. New Security Features (Cont.) Extensible Key Management allows for an enhanced structure to safely store the keys used in the encryption infrastructure—not only in the database itself but also outside the database in third-party software modules or with a Hardware Security Module Extensible Key Management allows for an enhanced structure to safely store the keys used in the encryption infrastructure—not only in the database itself but also outside the database in third-party software modules or with a Hardware Security Module

20. New Security Features (Cont.) Transparent Data Encryption offers improved flexibility for encrypting data by allowing encryption to be a property of the database and not just the result of functions in a line of code Transparent Data Encryption offers improved flexibility for encrypting data by allowing encryption to be a property of the database and not just the result of functions in a line of code

21. Demo

22. Resources & Questions Microsoft Resources: Microsoft Resources: –http://msdn.microsoft.com/sqlserver/ http://msdn.microsoft.com/sqlserver/ –http://www.microsoft.com/sql/community http://www.microsoft.com/sql/community Contact me: Contact me: –tghazali@sqlmvp.com Download Presentation: Download Presentation: –http://www.sqlmvp.com http://www.sqlmvp.com