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Posted on Sep 25, 2024

Please write SQL queries for: G. What is the average number of friends per student? (Your result should be just one number.) H. Find the

Please write SQL queries for:

G. What is the average number of friends per student? (Your result should be just one number.) H. Find the number of students who are either friends with Tom or are friends of Tom. Do not count Tom, even though technically he is a friend of a friend. I. Find the name and status of the student(s) with the greatest number of friends. image text in transcribed

Students(ID, name, status) Grade History(ID,courselD, courseCredit, grade_point) Friend(ID1,ID2) Likes(ID1, ID2) Friend table represents unidirectional relationships i.e if id1 = 1510 and id2 = 1381 means 1510 friends with 1381 but not vice versa. Likes table represents unidirectional relationships i.e if id1 = 1689 and id2 = 1709 means 1689 Likes 1709 but not vice versa. The four years of undergraduate education are called: freshman, sophomore, junior, Senior. Students Friend Likes Grade History ID2 ID1 1381 1689 1689 1709 1709 1247| 1782 1247 1911 1782 1247 1468 1316 1641 1304 1316 ID name 1025 Rick 1101 Jerry 1247 Shaggy Rogers 1304 Winnie the Pooh 1316 Leonardo 1381 Charlie Brown and Snoopy 1468 Mickey Mouse 1501 Raphael 1510 Bugs Bunny 1641 Scooby-Doo 1661 Scrooge McDuck 1689 Homer J. Simpson 1709 Tom 1782 Doremon 1911 Homer J. Simpson 1934 Morty ID1 1510 1510 1689 1381 1709 1689 1782 1782 1782 1468 1468 1101 1247 1247 1911 1501 1316 1934 1304 1661 ID2 1709 1689 1709 1247 1468 1468 1304 1934 1501 1101 ID coursell courseCredit grade_point year semester 1025 CSE311L 0 0.00 2020 FALL 1025 CSE311 3 3.00 2020 FALL 1304 CSE311L 0 0.00 2020 FALL 1304 CSE311L 3 3.00 2020 FALL 1316 CSE3111 0 0.00 2020 FALL 1316 CSE311L 3 4.00 2020 FALL 1468 CSE311L 0 0.00 2020 FALL 1468 CSE3111 3 330 2020 FALL 1501 CSE311L 0 0.00 2020 FALL 1501 CSE3111 3 2.70 2020 FALL 1641 CSE311L 0 0.00 2020 FALL 1641 CSE3111 3 3.70 2020 FALL 1101 1501 1934 1025 1641 1641 1911 1501 1501 1934 1934 1304 1661 1025 Students(ID, name, status) Grade History(ID,courselD, courseCredit, grade_point) Friend(ID1,ID2) Likes(ID1, ID2) Friend table represents unidirectional relationships i.e if id1 = 1510 and id2 = 1381 means 1510 friends with 1381 but not vice versa. Likes table represents unidirectional relationships i.e if id1 = 1689 and id2 = 1709 means 1689 Likes 1709 but not vice versa. The four years of undergraduate education are called: freshman, sophomore, junior, Senior. Students Friend Likes Grade History ID2 ID1 1381 1689 1689 1709 1709 1247| 1782 1247 1911 1782 1247 1468 1316 1641 1304 1316 ID name 1025 Rick 1101 Jerry 1247 Shaggy Rogers 1304 Winnie the Pooh 1316 Leonardo 1381 Charlie Brown and Snoopy 1468 Mickey Mouse 1501 Raphael 1510 Bugs Bunny 1641 Scooby-Doo 1661 Scrooge McDuck 1689 Homer J. Simpson 1709 Tom 1782 Doremon 1911 Homer J. Simpson 1934 Morty ID1 1510 1510 1689 1381 1709 1689 1782 1782 1782 1468 1468 1101 1247 1247 1911 1501 1316 1934 1304 1661 ID2 1709 1689 1709 1247 1468 1468 1304 1934 1501 1101 ID coursell courseCredit grade_point year semester 1025 CSE311L 0 0.00 2020 FALL 1025 CSE311 3 3.00 2020 FALL 1304 CSE311L 0 0.00 2020 FALL 1304 CSE311L 3 3.00 2020 FALL 1316 CSE3111 0 0.00 2020 FALL 1316 CSE311L 3 4.00 2020 FALL 1468 CSE311L 0 0.00 2020 FALL 1468 CSE3111 3 330 2020 FALL 1501 CSE311L 0 0.00 2020 FALL 1501 CSE3111 3 2.70 2020 FALL 1641 CSE311L 0 0.00 2020 FALL 1641 CSE3111 3 3.70 2020 FALL 1101 1501 1934 1025 1641 1641 1911 1501 1501 1934 1934 1304 1661 1025