Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Concept explainers

Parallel and Distributed Storage
A parallel storage file system is a sort of clustered file system. A clustered file system is a storage system shared by multiple devices simultaneously.
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Chapter 13, Problem 1PE
Program Plan Intro

Figure 13.3:

record 010101SrinivasanComp.Sci65000
record 112121WuFinance90000
record 215151MozartMusic40000
record 398345KimElec.Eng80000
record 432343El SaidHistory60000
record 533456GoldPhysics87000
record 645565KatzComp.Sci75000
record 758583CalifieriHistory62000
record 876543SinghFinance80000
record 976766CrickBiology72000
record 1083821BrandtComp.Sci92000

Expert Solution
Check Mark

Explanation of Solution

a.

Result of the action:

  • If record 6 is moved to the place of record 5, an empty space is created at the record 6.
  • The record 5 is completely discarded from the structure.
  • Again record 7 is moved to the space of record 6. So the information in the record 7 is placed at record 6.
  • The structure of file after the action is given below,
record 010101SrinivasanComp.Sci65000
record 112121WuFinance90000
record 215151MozartMusic40000
record 398345KimElec.Eng80000
record 432343El SaidHistory60000
record 545565KatzComp.Sci75000
record 658583CalifieriHistory62000
record 7    
record 876543SinghFinance80000
record 976766CrickBiology72000
record 1083821BrandtComp.Sci92000

Explanation of Solution

b.

Result of the action:

  • If record 7 is moved to the place of record 5, an empty space is created at the record 7.
  • The record 5 is completely discarded from the structure.
  • The structure of file after the action is given below,
record 010101SrinivasanComp.Sci65000
record 112121WuFinance90000
record 215151MozartMusic40000
record 398345KimElec.Eng80000
record 432343El SaidHistory60000
record 558583CalifieriHistory62000
record 645565KatzComp.Sci75000
record 7    
record 876543SinghFinance80000
record 976766CrickBiology72000
record 1083821BrandtComp.Sci92000

Explanation of Solution

c.

Result of the action:

  • The record 5 is completely discarded from the structure.
  • The structure of file after the action is given below,
record 010101SrinivasanComp.Sci65000
record 112121WuFinance90000
record 215151MozartMusic40000
record 398345KimElec.Eng80000
record 432343El SaidHistory60000
record 5    
record 645565KatzComp.Sci75000
record 758583CalifieriHistory62000
record 876543SinghFinance80000
record 976766CrickBiology72000
record 1083821BrandtComp.Sci92000

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Chapter 13 Solutions

Database System Concepts

Ch. 13 - Prob. 1PECh. 13 - Prob. 2PECh. 13 - Prob. 3PECh. 13 - Prob. 4PECh. 13 - Prob. 5PECh. 13 - Prob. 6PECh. 13 - Prob. 7PECh. 13 - Prob. 8PECh. 13 - Prob. 9ECh. 13 - Prob. 10E
Ch. 13 - List two advantages and two disadvantages of each...Ch. 13 - Prob. 12ECh. 13 - Prob. 13ECh. 13 - Prob. 14E
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