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.

One of the most important steps in desiging a database is establishing the data model. Part one of a two-part article describes how to create a logical model.

Under usual circumstances, the one-to-many or many-to-many relationship, alone, drives the pattern used within the database model. Certainly, the logical database model should represent the proper ...

When building up a logical design, primary keys should be identified by the actual data points in play. Generated or surrogate keys should be held in abeyance until dealing with the physical design ...

A logical data fabric replaces physical data integration with a logical data integration component, such as data virtualization. Data virtualization is a modern data integration approach that provides ...

Both logical and physical solutions have the same basic components -- a back-end database, processing for onboarding and offboarding access decision mechanisms and credentials.

Teradata Corp. has introduced the Utilities Logical Data Model (uLDM). As a utility's business needs evolve, the Teradata uLDM helps customer adapt their data warehouse physical model to ensure the ...

Transforms data models into UML, Cubing Services, Cognos, logical-dimensional, physical-dimensional and XML schema. Enables domain modeling, data model analysis, and glossary and naming models.

MIST.3030 — Undergraduate Id: 034607 Offering: 1 Credits: 3-3 Description An introduction to databases and Database Management Systems (DBMS). Topics include basic concepts of database technology, an ...