primary keys Archives

Find the ID of each customer who lives on the same street and in the same city as customer ‘12345’.

Posted on February 25, 2023 by Assessments

Basic sql question Question 1 (Textbook Chapter 3: Practice 3.2) 3.2 Suppose you are given a relation grade_points(grade, points) that provides a con-version from letter grades in the takes relation to numeric scores; for example, an “A” grade could be specified to correspond to 4 points, an “A—” to 3.7 points, a “B+” to 3.3 […]

Identify all foreign keys in relations you identified in Question 3 and justify your decisions.Draw the preliminary class diagram for the system described in the following requirements.

Posted on October 25, 2022 by Assessments

Draw the preliminary class diagram for the system described in the following requirements. Question Two Redraw the following class diagram into the equivalent E-R diagram. Question Three Convert the following E-R diagram, which represent a manufacturing system into relations. Make sure to specify all the primary keys. Question Four Identify all foreign keys in relations […]

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Find the ID of each customer who lives on the same street and in the same city as customer ‘12345’.

Identify all foreign keys in relations you identified in Question 3 and justify your decisions.Draw the preliminary class diagram for the system described in the following requirements.