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To what extent should end users be involved in the selection of a database management system and database design? Should all major retailing and manufacturing companies switch to RFID? Why or why not?
Draw the class diagram which covers all the situations described in the carpark system, showing inheritance, association (aggregation and composition as necessary) and multiplicity. Include all attributes and operations/methods.
United Broke Artists (UBA) is a broker for not-so-famous artists. UBA maintains a small database to track painters, paintings, and galleries. A painting is created by a particular artist and then exhibited in a particular gallery
What is the key value of the 4th index record on the top level, assuming each index record points to the record with the highest key value in a block of the next level down?
How big is a single interval in volts. Receivers have no choice but to decode the the binary sample value at the center of the interval. So, what would the received voltage of the sample be
Explain Class diagram. Outline the main steps in developing a class diagram for a Use Case(UC).
Consider the EER diagram for a car dealer in the figure below. Map the EER schema into a set of relations.
questionethical and legal considerations in marketing intellectual property and product safetyprepare a paper in which
Illustrate relational algebra expressions for names of all salespeople, names of all salespeople having ORDER row and names of salespeople not having ORDER row.
Consider a database with objects X and Y and assume that there are two transactions T1 and T 2. Transaction T 1 reads objects X and Y and then writes object X. Transaction T 2 reads objects X and Y and then writes objects X and Y.
determine the functional dependencies that exist in the following table. After determining the functional dependencies, convert this table to an equivalent collection of tables.
Complete (i.e., reverse engineering) ER diagram below such that 4 relation schemas above are exactly result of a translation from the ERD to the relational model.
Subsequently, the evaluation of the project is based on different types of virtualization mechanisms compared to standard physical server deployment.
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