Below is an example of a logical schema: Physical Schema. A physical data model or physical schema is a representation of an implementation design; ...

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 ...

A logical database can stretch over multiple physical hard disks and information files. The data storage unit is still a single database for information retrieval purposes.

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 ...

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 ...