By Dejan Sarka
Ace your coaching for Microsoft Certification examination 70-463 with this 2-in-1 education equipment from Microsoft Press. paintings at your personal velocity via a sequence of classes and functional workouts, after which investigate your abilities with on-line perform assessments - that includes a number of, customizable trying out recommendations. layout and enforce a knowledge warehouse. advance and increase SQL Server Integration prone applications. deal with and hold SQL Server Integration companies applications. construct information caliber ideas. enforce customized code in SQL Server Integration companies programs.
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Additional resources for Exam 70-463: Implementing a Data Warehouse with Microsoft SQL Server 2012: Training Kit
Usually, all foreign keys taken together uniquely identify each row in the fact table, and thus collectively form a unique key, so you can use all the foreign keys as a composite primary key of the fact table. You can also add a simpler key. The fact table is on the “many” side of its relationships with the dimensions. ” This proposition is a fact; this is how the fact table got its name. info Chapter 1 7 The Star schema evolved from a conceptual model of a cube. You can imagine all sales as a big box.
Private dimensions are dimensions that pertain to only a single Star schema. However, it is quite simple to design shared dimensions; you do not gain much from the design-time perspective by using private dimensions. In fact, with private dimensions, you lose the connections between the different fact tables, so you cannot compare the data in different fact tables over the same dimensions. For example, you could not compare sales and accounting data for the same customer if the sales and accounting fact tables didn’t share the same customer dimension.
From the Add Table list, select the following tables (click each table and then click the Add button): ■■ DimProduct ■■ DimProductCategory ■■ DimProductSubcategory Your diagram should look like Figure 1-11. 4. Try to figure out which columns are used for the following purposes: ■■ Keys ■■ Names ■■ Translations ■■ Attributes ■■ Member properties ■■ Lineage ■■ Natural hierarchies 5. Try to figure out whether the tables in the diagram are prepared for a Type 2 SCD change. 6. Add the DimSalesReason table to the diagram.