The body of the order contains one or more order lines, sometimes called line ____________________.
Fill in the blank(s) with the appropriate word(s).
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Answer the following questions with reference to how the ER model in Figure 17.13 maps to relational tables.
The ER diagram in Figure 17.13 shows only entities and primary key attributes. The absence of recognisable named entities or relationships is to emphasize the rule-based nature of the mapping rules described in Step 2.1 of logical database design.
(a) How many relations will represent the ER model?
(b) How many foreign primary keys are mapped to the relation representing X?
(c) Which relation(s) will have no foreign key?
(d) Using only the letter identifier for each entity, provide appropriate names for the relations mapped from the ER model.
(e) If the cardinality for each relationship is changed to one-to-one with total participation for all entities; how many relations would be derived from this version of the ER model?
What are a few of the challenges of creating a set of standards for members of a particular profession to follow?
What will be an ideal response?
The definition of ‘professional' provided by ______________, according to the book, relates most directly to our interests in the ethical responsibilities of professionals.
A. Michel Foucault B. Michael Bayles C. Richard Posner D. Michael Davis
Multiple animations can be applied to objects in PowerPoint 2013
Indicate whether the statement is true or false