A table in a database holds the attributes for one entity only. Data can then be added in the form of records. Rather than storing information in one table, relational databases store data across ...

Introduce the concepts about relational models. Train students on how to convert a conceptual entity relationship model to a relational model. Introduce students with the reasons and process of ...

Database normalization is the cornerstone of database theory. Once a database is normalized, relationships between the data in multiple tables must be established. A hefty part of designing a ...

Ok this SHOULD be so easy but I must be making it overly complex.<br><br>I have an employee-boss relationship.<br><br>HOWEVER, in theory an employee could have TWO or more bosses.<br><br>So to deal ...

I have always used Visio to build database schemas. However, with the latest version of Visio, I think Microsoft has really dropped the ball -- the cardinalities are microscopic and nearly impossible ...

Circuit diagrams and Unified Modeling Language diagrams are just two examples of standard visual languages that help accelerate work by promoting regularity, removing ambiguity and enabling software ...