Advantages of SQL Server 2008 over SQL Server 2005? [closed]

Solution 1:

• Transparent Data Encryption. The ability to encrypt an entire database.
• Backup Encryption. Executed at backup time to prevent tampering.
• External Key Management. Storing Keys separate from the data.
• Auditing. Monitoring of data access.
• Data Compression. Fact Table size reduction and improved performance.
• Resource Governor. Restrict users or groups from consuming high levels or resources.
• Hot Plug CPU. Add CPUs on the fly.
• Performance Studio. Collection of performance monitoring tools.
• Installation improvements. Disk images and service pack uninstall options.
• Dynamic Development. New ADO and Visual Studio options as well as Dot Net 3.
• Entity Data Services. Line Of Business (LOB) framework and Entity Query Language (eSQL)
• LINQ. Development query language for access multiple types of data such as SQL and XML.
• Data Synchronizing. Development of frequently disconnected applications.
• Large UDT. No size restriction on UDT.
• Dates and Times. New data types: Date, Time, Date Time Offset.
• File Stream. New data type VarBinary(Max) FileStream for managing binary data.
• Table Value Parameters. The ability to pass an entire table to a stored procedure.
• Spatial Data. Data type for storing Latitude, Longitude, and GPS entries.
• Full Text Search. Native Indexes, thesaurus as metadata, and backup ability.
• SQL Server Integration Service. Improved multiprocessor support and faster lookups.
• MERGE. TSQL command combining Insert, Update, and Delete.
• SQL Server Analysis Server. Stack improvements, faster block computations.
• SQL Server Reporting Server. Improved memory management and better rendering.
• Microsoft Office 2007. Use OFFICE as an SSRS template. SSRS to WORD.
• SQL 2000 Support Ends. Mainstream Support for SQL 2000 is coming to an end.

(Good intro article part 1, part 2, part 3. As for compelling reasons, that depends on what you are using SQL server for. Do you need hierarchical data types? Do you currently store files in the database and want to switch over to SQL Server's new filestream feature? Could you use more disk space by turning on data compression?

And let's not forget the ability to MERGE data.

Solution 2:

Be aware that a lot of the really killer features are only in Enterprise Edition. Data compression and backup compression are among two of my top favorites - they give you free performance improvements right off the bat. Data compression lessens the amount of I/O you have to do, so a lot of queries speed up 20-40%. CPU use goes up, but in today's multi-core environments, we often have more CPU power but not more IO. Anyway, those are only in Enterprise.

If you're only going to use Standard Edition, then most of the improvements require changes to your application code and T-SQL code, so it's not quite as easy of a sell.

Solution 3:

Someone with more reputation can copy this into the main answer:

• Change Tracking. Allows you to get info on what changes happened to which rows since a specific version.
• Change Data Capture. Allows all changes to be captured and queried. (Enterprise)

Solution 4:

I guess it depends on your role

For me as a developer:

• Merge statement
• Reporting Services improvement
• Date/time changes

Edit, late update, after using it

• filtered indexes
• table valued parameters
• Reporting Services without IIS