Microsoft SQL Server 2008 Overview - The Diigo Meta page

• 09 Apr 09
  

  John Pouliezos

  doc:mssql overview

• 22 Sep 08
  

  amila pradeep

  Development

• 07 Jul 08
  

  Mr. DiGi

  mssql 2008 database

  • Enhanced Database Mirroring

    SQL Server 2008 builds on SQL Server 2005 by providing a more reliable platform that has enhanced database mirroring, including automatic page repair, improved performance, and enhanced supportability.
  • Automatic Recovery of Data Pages

    SQL Server 2008 enables the principal and mirror machines to transparently recover from 823/824 types of data page errors by requesting a fresh copy of the suspect page from the mirroring partner transparently to end users and applications.
  • Log Stream Compression

    Database mirroring requires data transmissions between the participants of the mirroring implementations. With SQL Server 2008, compression of the outgoing log stream between the participants delivers optimal performance and minimizes the network bandwidth used by database mirroring.
  • Resource Governor

    Provide a consistent and predictable response to end users with the introduction of Resource Governor, allowing organizations to define resource limits and priorities for different workloads, which enable concurrent workloads to provide consistent performance to their end users.
  • Predictable Query Performance

    Enable greater query performance stability and predictability by providing functionality to lock down query plans, enabling organizations to promote stable query plans across hardware server replacements, server upgrades, and production deployments.
  • Data Compression

    Enable data to be stored more effectively, and reduce the storage requirements for your data. Data compression also provides significant performance improvements for large I/O bound workloads, like data warehousing.
  • Hot Add CPU
  • Performance Data Collection

    Performance tuning and troubleshooting are time-consuming tasks for the administrator. To provide actionable performance insights to administrators, SQL Server 2008 includes more extensive performance data collection, a new centralized data repository for storing performance data, and new tools for reporting and monitoring.
  • Language Integrated Query (LINQ)
  • new date and time data types
  • HIERARCHY ID

    Enable database applications to model tree structures in a more efficient way than currently possible. New system type HierarchyId can store values that represent nodes in a hierarchy tree. This new type will be implemented as a CLR UDT, and will expose several efficient and useful built-in methods for creating and operating on hierarchy nodes with a flexible programming model.
  • FILESTREAM Data

    Allow large binary data to be stored directly in an NTFS file system, while preserving an integral part of the database and maintaining transactional consistency. Enable the scale-out of large binary data traditionally managed by the database to be stored outside the database on more cost-effective storage without compromise.
  • Integrated Full Text Search

    Integrated Full Text Search makes the transition between Text Search and relational data seamless, while enabling users to use the Text Indexes to perform high-speed text searches on large text columns.
  • Sparse Columns

    NULL data consumes no physical space, providing a highly efficient way of managing empty data in a database. For example, Sparse Columns allows object models that typically have numerous null values to be stored in a SQL Server 2005 database without experiencing large space costs.
  • Large User-Defined Types

    SQL Server 2008 eliminates the 8-KB limit for User-Defined Types (UDTs)
  • Backup Compression
  • Partitioned Table Parallelism

    Partitions enable organizations to manage large growing tables more effectively by transparently breaking them into manageable blocks of data. SQL Server 2008 builds on the advances of partitioning in SQL Server 2005 by improving the performance on large partitioned tables.
  • Star Join Query Optimizations
  • Grouping Sets

    Grouping Sets is an extension to the GROUP BY clause that lets users define multiple groupings in the same query. Grouping Sets produces a single result set that is equivalent to a UNION ALL of differently grouped rows, making aggregation querying and reporting easier and faster.
  • Change Data Capture

    With Change Data Capture, changes are captured and placed in change tables. It captures complete content of changes, maintains cross-table consistency, and even works across schema changes. This enables organizations to integrate the latest information into the data warehouse.
  • MERGE SQL Statement

    With the introduction of the MERGE SQL Statement, developers can more effectively handle common data warehousing scenarios, like checking whether a row exists, and then executing an insert or update.
  • Learn more about SQL Server 2008 Integration Services and Data Warehousing
  • SQL Server 2008 Analysis Services
  • Enterprise Reporting Engine

    Reports can easily be delivered throughout the organization, both internally and externally, with simplified deployment and configuration. This enables users to easily create and share reports of any size and complexity.

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