Modeling the real world: structures, constraints, and operations. The entity relationship to data modeling (including network hierarchical and object-oriented), emphasis on the relational model.

See data model and dimensional modeling. Building an Entity Relationship Model The Erwin modeling program from CA Technologies stands for Entity Relationship for Windows.

Modeling the real world: structures, constraints, and operations. The entity relationship to data modeling (including network hierarchical and object-oriented), emphasis on the relational model.

An inherent awkwardness exists in every many-to-many relationship between entities. Ambiguity causes this persistent awkwardness, primarily because a many-to-many relationship is such a fuzzy thing.

CA Technologies announced a new solution intended to help companies manage and integrate their database infrastructure with Microsoft's SQL Azure cloud database environment. The new product, CA ERwin ...

An early preview of database migration services, allowing Oracle and SQL Server applications to be more-easily shifted to Azure, is also part of today's Build keynote.