Discuss which of the updates that created each of the tuples shown in Figure 26.9 were applied

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Discuss which of the updates that created each of the tuples shown in Figure 26.9 were applied retroactively and which were applied proactively.
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Fundamentals of Database Systems

ISBN: 978-0136086208

6th edition

Authors: Ramez Elmasri, Shamkant Navathe

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