In the example shown in figures the 2NF customer table was converted to two 3NF tables. Verify
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in 2NF, the nonkev field SALES-REP-NAME is functionally dependent on another nonkey field SALES-REP-NUM CUSTOMER IN 2NF CUSTOMER- CUSTOMER- SALES-REP- SALES-REP- RECORD# NAME ADDRESS NUM NAME 108 233 254 431 779 800 Benedict, Louise Coreli, Helen Gomez, J.P. Lee, M. Paulski, DianeLead, SD Zuider, Z. San Diego, CA Nashua, NH Butte, MT Snow Camp, NC Kaplan, James McBride, Jon Stein, Ellen Roman, Harold Stein, Ellen Roman, Harold 41 2 38 74 38 74 Greer, SC CUSTOMER IN 3NF SALES-REP- NUM CUSTOMER- CUSTOMER- RECORD# NUM NAME ADDRESS 41 108 233 254 431 779 800 Benedict, Louise San Diego, CA Corelli, HelenNashua, NH Gomez, JP. Lee, M. Paulski, Diane Lead, SD Zuider, Z. Butte, MT Snow Camp, NC 4 74 Greer, SC 74 in 3NF, no nonkey field is dependent on another nonkey field SALES-REP IN 3NF SALES-REP SALES-REP- RECORD# NUM NAME McBride, Jon Stein, Elen Kaplan, James Roman, Harold 2 41 74
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Related Book For
Systems Analysis and Design
ISBN: 978-1133274636
9th Edition
Authors: Shelly Cashman, Gary B. Shelly and Harry J. Rosenblatt
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