Analyzing Data with Power BI: Introduction to Power BI by Anthony Williams

Author:Anthony Williams
Language: eng
Format: azw3
Published: 2017-07-12T07:00:00+00:00

Many physical database models, in fact, can implement various already given logical database models. Major database software actually will offer you some control in managing the overall physical implementation, and the choices which are made have a great impact on overall performance. A database model is both a way of designing and structuring data as well as a way of defining a collection of operations that may be performed on the data. For example, the relational model may define various operations including project join and select. However, often database operations are not explicit in a certain query language, but they still produce the ground foundation on that a query language is performed.

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