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Question
A data dictionary is sometimes described as "the database designer's database" because it records the design decisions about tables and their structures.Answer
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The term "database development" is used to describe the process of database design and implementation.
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Structural dependence exists when it is possible to make changes in the file structure without affecting the application program's ability to access the data.
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The same data might be simultaneously structured and unstructured depending on the intended processing.
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In most implementations, the data warehouse and OLAP are stand-alone, independent environments.
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Data warehouse data are organized and summarized by table, such as CUSTOMER and ADDRESS.
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