tailieunhanh - Microsoft SQL Server 2005 Developer’s Guide- P45

Microsoft SQL Server 2005 Developer’s Guide- P45:SQL Server 2005 is a feature-rich release that provides a host of new tools and technologies for the database developer. This book is written to help database developers and DBAs become productive immediately with the new features and capabilities found in SQL Server 2005. | Chapter 11 Developing BI Applications with 419 The DataSource Class The DataSource class defines and interacts with the DataSources available in Analysis Services. The DataSourceView Class A DataSourceView contains a list of data pertinent to its underlying data source. The DataSourceView class is used to associate a data source with a data source view assign table schemas and save data source views to Analysis Services. The Dimension Class The Dimension class allows you to set the source of a dimension process the dimension and save the dimension to Analysis Services. Dimensions are essentially an additional layer of metadata you can place over a table or set of tables to define hierarchical relationships between columns. The Cube Class The Cube class allows you to set the source of a cube process the cube and the objects contained in the cube add MeasureGroups to a cube and save the cube and its contents to Analysis Services. Cubes store results of data at different summary levels resulting in efficient multidimensional query actions. Object Model data provider is a .NET Framework data provider that you can use to communicate with multidimensional data sources from a client application. AdomdConnection The AdomdConnection class is used to open a connection to a multidimensional data source. It can also be used to connect to the multidimensional data source metadata for example a local cube .cub file. You can review the local cube file to learn about the metadata properties that represent the cube on the multidimensional data source. Each AdomdConnection is associated with an XMLA session. The AdomdConnection objects are not automatically destroyed when they go out of scope. This means that you must explicitly close any open Connection objects in your applications. If the AdomdConnection is not closed it remains open and can be used by other AdomdConnections. AdomdCommand The AdomdCommand class is used to execute a command .

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