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Data Modeling: An Integrated View. Data modeling is an essential technology for understanding relationships between data sets. The integrated view of conceptual, logical, and physical data models ...
The end goal of database design is to be able to transform a logical data model into an actual physical database. A logical data model is required before you can even begin to design a ... For example ...
Physical: Design a model for implementing the logical model that considers the RDBMS to be used. During this phase, you’ll describe tables, indexes, and so on.
Logical data models detail how entities in the conceptual model map to tables, fields, indexes and relationships within a relational database. For example, a relational table may represent an ...
Under far too many circumstances, those responsible for modeling data are ignoring the above perspective on primary keys and are simply defining surrogate keys for everything in their data model. One ...
A logical data model captures how a company conducts its business and how the data are organized for decision-making and analysis. The Utilities LDM also highlights data integrity problems, provides ...