Given the following database schema: Customer(cid. , cname , rating, salary) Item(iid, iname , type ) Ooder(cid , iid , day , gty ) what is the relational algebra that retrieve the names of customers who have ordered item with id 100

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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Quiz 1
العودة
< >
00: all cö
Given the following database schema:
Customer(cid., cname , rating, salary)
Item(iid, iname , type )
Ooder(cid, iid , day , gty )
what is the relational algebra that retrieve the
names of customers who have ordered item with id
100
.a
.All choices are correct
.b
1ramelo iid=100
'iid=100
(OrderCustomer))
.C
iid=100
1-100Order)aCustomer)
.d
(Order)
templ<-o
temp2<-templdCustomer
Ocname(temp2)
iid=100
Transcribed Image Text:Quiz 1 العودة < > 00: all cö Given the following database schema: Customer(cid., cname , rating, salary) Item(iid, iname , type ) Ooder(cid, iid , day , gty ) what is the relational algebra that retrieve the names of customers who have ordered item with id 100 .a .All choices are correct .b 1ramelo iid=100 'iid=100 (OrderCustomer)) .C iid=100 1-100Order)aCustomer) .d (Order) templ<-o temp2<-templdCustomer Ocname(temp2) iid=100
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