ISDS 2001 Chapter : Ch 2 Study Guide For Test 3- Access
15 Mar 2019
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Document Summary
Time variant provides data at various points in time (daily, weekly, monthly quarterly, Integrated data from different sources are stored in a consistent format. Also clarity is the four major characteristics of data warehousing and what each means: Subject oriented data are organized by topics, such as sales, products, customers, etc. Every data warehouse should have a time variable. (example: lsu enrollment, retention, graduation data) Nonvolatile users cannot change the data once entered into the data warehouse. This ensures that the data warehouse is almost exclusively available for access. Stores (ods); and enterprise data warehouses (edw)) the definition of metadata and be able to identify examples. Chapter 2: data warehousing the definition of data warehouse. Data about data; describes the contents of a data warehouse, its structure (such as field name, data type, default value, length), meaning, syntax and the manner of its use. *examples* the major components of the data warehouse process and describe those components: data.
