Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN: 9780133594140
Author: James Kurose, Keith Ross
Publisher: PEARSON
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Takes( Sid: integer, cid: integer)
relational Schema: (keys undenined).
Class cid:integer, cname: String, instructur:string, room:string
Student (sid: intryer, snume Stniny, major éstriny, age:inteyer)..
Torent(sid: intryer, snume iStony, major ístriny, aye:integer)
lakes( Sid: integer, cid integer)
meet-até time).
a) Write the folloming query in sOL.
tind the names of students who are enrolled.
in the classesoffered bu ' Tames ward,
Wrile the following queru in SQL.
Find the names of all Students who are enrolled in
buth.
'Psychorogy and 'Enylish' classes
c)Write the following gueny in SQL.
Kind the numes of all Students nho are enrolled
in Psych but not Engish'class..
d) Write the. following guery in sQL.
Find the names of all shicents who arc not
enrolled in any class.
e) Write the following guery in SOL For each
class, find the averude age of all students
who are enrolled in that clas.
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Transcribed Image Text:Takes( Sid: integer, cid: integer) relational Schema: (keys undenined). Class cid:integer, cname: String, instructur:string, room:string Student (sid: intryer, snume Stniny, major éstriny, age:inteyer).. Torent(sid: intryer, snume iStony, major ístriny, aye:integer) lakes( Sid: integer, cid integer) meet-até time). a) Write the folloming query in sOL. tind the names of students who are enrolled. in the classesoffered bu ' Tames ward, Wrile the following queru in SQL. Find the names of all Students who are enrolled in buth. 'Psychorogy and 'Enylish' classes c)Write the following gueny in SQL. Kind the numes of all Students nho are enrolled in Psych but not Engish'class.. d) Write the. following guery in sQL. Find the names of all shicents who arc not enrolled in any class. e) Write the following guery in SOL For each class, find the averude age of all students who are enrolled in that clas.
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