DATABASE SYSTEMS
DATABASE SYSTEMS
13th Edition
ISBN: 9780357095607
Author: Coronel
Publisher: CENGAGE L
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Concurrency Control
The simultaneous occurrence of two or more operations is called concurrence and the situation is called concurrency. In concurrency, the function of one operation can affect the function of the other and put data integrity at risk. Hence, management for …
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Chapter 10, Problem 2RQ

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Consistent database state:

  • The integrity and other constraints must satisfied in a database is known as consistent database state.
  • The constraints are categorized into various types; they are,
    • Integrity constraints
    • Transaction constraints
    • Database constraints

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Dijkstra's Algorithm (part 1).  Consider the network shown below, and Dijkstra’s link-state algorithm. Here, we are interested in computing the least cost path from node E (note: the start node here is E) to all other nodes using Dijkstra's algorithm. Using the algorithm statement used in the textbook and its visual representation, complete the "Step 0" row in the table below showing the link state algorithm’s execution by matching the table entries (i), (ii), (iii), and (iv) with their values.  Write down your final [correct] answer, as you‘ll need it for the next question.
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Chapter 10 Solutions

DATABASE SYSTEMS

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