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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Question

FIGURE P1.5 The File Structure for Problems 5-8

REFER IMAGE

Identify and discuss the serious data redundancy problems exhibited by the file structure shown in Figure P1.5.  

PROJ_NUM PROJ_NAME EMP_NUM EMP NAME JOB_CODE JOB_CHO_HOUR PROJ_HOURS EMP_PHONE 1 Hurricane 101 John D. Newson EE 85.00 13.3 653-234-3245 1 Hurricane 105 David F. Schwann CT 60.00 16.2 653-234-1123 1 Hurricane 110 Anne R. Ramoras CT 60.00 14.3 615-233-5568 2 Coast 101 John D. Newson EE 85.00 19.8 653-234-3254 2 Coast 108 June H. Sattlemeir EE 85.00 17.5 905-554-7812 3 Satellite 110 Anne R. Ramoras CT 62.00 11.6 615-233-5568 3 Satellite 105 David F. Schwann CT 26.00 23.4 653-234-1123 3 Satelite 3 Satellte 123 Mary D. Chen EE 85.00 19.1 615-233-5432 112 Allecia R. Smith BE 85.00 20.7 615-678-6879
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Transcribed Image Text:PROJ_NUM PROJ_NAME EMP_NUM EMP NAME JOB_CODE JOB_CHO_HOUR PROJ_HOURS EMP_PHONE 1 Hurricane 101 John D. Newson EE 85.00 13.3 653-234-3245 1 Hurricane 105 David F. Schwann CT 60.00 16.2 653-234-1123 1 Hurricane 110 Anne R. Ramoras CT 60.00 14.3 615-233-5568 2 Coast 101 John D. Newson EE 85.00 19.8 653-234-3254 2 Coast 108 June H. Sattlemeir EE 85.00 17.5 905-554-7812 3 Satellite 110 Anne R. Ramoras CT 62.00 11.6 615-233-5568 3 Satellite 105 David F. Schwann CT 26.00 23.4 653-234-1123 3 Satelite 3 Satellte 123 Mary D. Chen EE 85.00 19.1 615-233-5432 112 Allecia R. Smith BE 85.00 20.7 615-678-6879
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