Explore BrainMass

Explore BrainMass

    Database Design Crow Diagram.

    Not what you're looking for? Search our solutions OR ask your own Custom question.

    This content was COPIED from BrainMass.com - View the original, and get the already-completed solution here!

    Draw an IE Crow's Foot E-R diagram for the entities DEPARTMENT and EMPLOYEE and the 1:N relationship between them. Assume that a DEPARTMENT does not need to have an EMPLOYEE, but that every EMPLOYEE is assigned to a DEPARTMENT. Include appropriate identifiers and attributes for each entity.

    Give examples of binary 1:N relationships, other than those in the textbook, for (a) an optional-to-optional relationship, (b) an optional-to-mandatory relationship, (c) a mandatory-to-optional relationship, and (d) a mandatory-to-mandatory relationship. Illustrate your answer using IE Crow's Foot E-R diagrams.

    © BrainMass Inc. brainmass.com March 5, 2021, 12:18 am ad1c9bdddf
    https://brainmass.com/computer-science/operating-systems/database-design-crow-diagram-498976

    Solution Preview

    Hi there,

    ** Please see the attached file for the IE crow's foot entity relationship diagram for the given scenarios **

    Problem definition
    Database design crow diagram
    Draw an IE Crow's Foot E-R diagram for the entities DEPARTMENT and EMPLOYEE and the 1:N relationship between them. Assume that a DEPARTMENT does not need to have an EMPLOYEE, but that every EMPLOYEE is assigned to a DEPARTMENT. Include appropriate identifiers and attributes for each entity. 

    Give examples of binary 1:N relationships, other than those in the textbook, for (a) an optional-to-optional relationship, (b) an optional-to-mandatory relationship, (c) a mandatory-to-optional relationship, and (d) a mandatory-to-mandatory relationship. Illustrate your answer using IE Crow's Foot E-R diagrams.

    Solution to a problem
    The ...

    Solution Summary

    In this solution we draw an IE Crow's Foot E-R diagram for a given list of entities and the relationship between them. Using this diagram we answer a series of questions.

    $2.49

    ADVERTISEMENT