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.

ERwin, along with ER/Studio and PowerDesginer, allow: design logical and physical data models, print figures and shares them with developers and analysts, generates database objects based on ...

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 ...

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 ...

Physical design: Translating the logical model into a physical design for a specific database system, with considerations for factors such as storage and performance.

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 ...