SQL Server Analysis Services 2014: табличная модель - альтернатива кубам?

Editor's Notes

• #5: After acquiring the OLAP software technology from an Israeli-based company, Panorama Software,Microsoft bundled the first release with SQL Server 7 in 1998 under the name "OLAP Services".The product provided tools to building OLAP cubes and supported MultidimensionalExpressions (MDX) as a query language. In 2000, the name changed to "Analysis Services" due toinclusion of data mining capabilities for trend discovery and data mining
• #6: Данные представлены в разрезе:измерениймер (показателей)
• #7: Данные представлены в разрезе:измерениймер (показателей)
• #11: Tabular implementationsIn SQL Server 2012, Tabular is delivered in two ways: PowerPivot (for Excel and SharePoint) – PowerPivot is an implementation of Tabular for personaland team BI. When the model is loaded, data resides in the in-memory VertiPaq store. Analysis Services in Tabular mode – Analysis Services in Tabular mode is an implementationof Tabular for organizational BI. By default, Analysis Services in Tabular mode caches data inthe VertiPaq store, but it can be configured to generate and pass queries to a SQL Server database.Both PowerPivot and Analysis Services in Tabular mode include modeling environments for implementingtabular solutions, and therefore, they are Tabular.VertiPaq implementationsMicrosoft provides three VertiPaq hosting implementations: PowerPivot (Excel and SharePoint) – When an end-user creates a PowerPivot model in Excel,behind the scenes PowerPivot stores the imported data in an in-process VertiPaq store. Similarly,if the user deploys the model to SharePoint, an Analysis Services server running in aSharePoint integration mode extracts the model data and caches it in a VertiPaq engine that'shosted by an Analysis Services instance configured in SharePoint integration mode.SAMPLEINTRODUCING BUSINESS INTELLIGENCE SEMANTIC MODEL 15 Analysis Services in Tabular mode – SQL Server 2012 allows you to install a stand-alone instanceof Analysis Services in Tabular mode that uses the VertiPaq engine by default for storagewithout requiring SharePoint. Because of this, you can deploy a tabular model to adedicated server just like you could deploy a cube. One caveat is that you can't deploy bothTabular and Multidimensional models to the same Analysis Services instance. However, youcan install multiple Analysis Services instances, such as one instance for Multidimensionaland another Tabular, on the same server. Columnstore indexes – Another interesting VertiPaq implementation that debuts in SQLServer 2012 is creating a new type of index on a database table, such as a fact table in a datawarehouse database. A columnstore index might dramatically improve performance of queriesthat aggregate data from that table, such as an operational report that sources and aggregatesdata directly from a data warehouse database. Behind the scenes, a columnstore index ispowered by VertiPaq running inside the SQL Server Database Engine. For more informationabout columnstore indexes, see the video, "Columnstore Indexes Unveiled" by Eric Hanson(http://bit.ly/colulmnstoreindex). Columnstore indexes are not an implementation of Tabularbecause they don't provide a modeling environment.At this point, you should have a good high-level understanding of Tabular and what factors led toits invention. Let's now turn our focus to its usage scenarios.
• #29: http://quoteinvestigator.com/2011/09/08/640k-enough/
• #39: http://tinyurl.com/SSASDecisionMatrixШаг 1: Список интересующих опций в строкуШаг 2: Определить важность атрибутовШаг 3: Определить вес для каждого атрибутаШаг 4: Определить очки от 0 до 100