The relational database below contains two related tables - “Supplier” and “Product”:   “Product” table:  Primary key = Prod-code,  Foreign key = Supp-code Prod-code Prod -name Prod -desript Prod -stocktype Prod -stocklevel Prod -expireDate Supp-code 10010 aaa qwert 615 123445677 2017-11-14 501 10011 bbb asdfgg 615 234567899 2017-11-16 501 10012 ccc zxxcvv 234 345678900 2017-11-13 502 10013 eee ytuytu 234 454577777 2017-10-13 503 10014 jjj werewr 231 436436885 2017-10-23 503 10015 sdg rtyrtyry 275 676446322 2017-10-30 504 10016 ewt erterter 789 232317879 2017-12-30 501   “Supplier” table: Primary key = Supp -code,  No Foreign key Supp -code Supp -lname Supp -fname Supp -Initial Supp -areacode Supp -phone 501 xxx qwert F 615 123445678 502 yyy asdfgg B 615 234567890 503 zzz zxxcvv X 234 345678901 The above database contains an error in the data. Identify and describe this error.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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The relational database below contains two related tables - “Supplier” and “Product”:

 

“Product” table:  Primary key = Prod-code,  Foreign key = Supp-code

Prod-code

Prod -name

Prod -desript

Prod -stocktype

Prod -stocklevel

Prod -expireDate

Supp-code

10010

aaa

qwert

615

123445677

2017-11-14

501

10011

bbb

asdfgg

615

234567899

2017-11-16

501

10012

ccc

zxxcvv

234

345678900

2017-11-13

502

10013

eee

ytuytu

234

454577777

2017-10-13

503

10014

jjj

werewr

231

436436885

2017-10-23

503

10015

sdg

rtyrtyry

275

676446322

2017-10-30

504

10016

ewt

erterter

789

232317879

2017-12-30

501

 

“Supplier” table: Primary key = Supp -code,  No Foreign key

Supp -code

Supp -lname

Supp -fname

Supp -Initial

Supp -areacode

Supp -phone

501

xxx

qwert

F

615

123445678

502

yyy

asdfgg

B

615

234567890

503

zzz

zxxcvv

X

234

345678901

The above database contains an error in the data. Identify and describe this error.      

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