PK SectionNo CourseName MIS MIS System Analysis E-commerce Credits Faculty TO0123456 CourseNo 3305 3305 3307 4309 3 2 2 1 3 TO0235145 3 TO0123456 1 TO0976550 (Business rule: A course may offer multiple sections) 1. Is the relation in the first normal form? Answer Yes or No. If your answer is "yes", explain why you think that way. If your answer is No, explain why and then normalize it to the 1st normal form. The relation should be in the 1NF before you answer the second part of the question below. 2. Normalize the above relation(s) to the 2nd normal form. Please show the resulting relations.

PK SectionNo CourseName MIS MIS System Analysis E-commerce Credits Faculty TO0123456 CourseNo 3305 3305 3307 4309 3 2 2 1 3 TO0235145 3 TO0123456 1 TO0976550 (Business rule: A course may offer multiple sections) 1. Is the relation in the first normal form? Answer Yes or No. If your answer is "yes", explain why you think that way. If your answer is No, explain why and then normalize it to the 1st normal form. The relation should be in the 1NF before you answer the second part of the question below. 2. Normalize the above relation(s) to the 2nd normal form. Please show the resulting relations.

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

Section: Chapter Questions

Problem 1PE

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Consider the relation Project(pid,name,budget) with relation instances {(100,'GOTAM',30000), (140,'Ravix',40000), (250,'NUflex',25000), (106,'AlphaLaunch',8000)}. What is the cardinality of the relation? Enter the value below as a number, e.g., 876.
Consider the following relations: Employee(E_id: integer, E_name: string, Age: integer, Salary: real) Works(E_id: integer, Dep_id: integer, Start_date: date) Department(Dep_id: integer, Dep_name: string, Budget: real, Manager_E_id: integer) What referential integrity constraints exist between these relations? What are the options for enforcing these constraints when a user attempts to delete a Dept tuple?
Student ID | Student_name | Cource ID | Cource name | Grade 2 Noor 1 HIML B+ 7 C++ A 3 JAVA B 25 Al 2 C+ A 3 JAVA B 27 Sara 1 HIML A 3 JAVA A 28 Abmed 2 C++ B+ 1. What update anomalies may occur in the selation? 2. In which normal form (NF) the above relation? Provide an explanation to support your answer. 3. Decompose the relation so that the resut relations are in the third normal form (3NF).
Consider the following relations about NBA: P LAY ER(pid, pname, nation). Each tuple describes a player with pid being the player’sid, pname his name, and nation his nationality. The table has a primary key pid. T EAM(tid, tname). Each tuple describes a team with tid being the team’s id, and tnameits name. The table has a primary key tid. REGIST ER(pid, tid, salary, year). Each tuple records the fact that a certain player (indicated by pid) played for a certain team (indicated by tid) in a specific year with an annual income given in salary. The table has a primary key (pid,year ). Note that a player may belong to different teams in different years. (a) Find the names of the teams and the corresponding year that “Michael Jordan” ever playedfor. (b) Find the names of all players of the team “Heat” in year 2020. (c) For each player, display his pid, and the first and last years in which he played. (d) Find the pids of all players that played from 2010 through 2020 (i.e., such a…
1. Consider the following relations:Student (snum: integer, sname: string, major: string, level: string, age: integer)Class (name: string, meets at: string, room: string, fid: integer)Enrolled (snum: integer, cname: string)Faculty (fid: integer, fname: string, deptid: integer)The meaning of these relations is straightforward; for example, Enrolled has onerecord per student-class pair such that the student is enrolled in the class. Level is atwo character code with 4 different values (example: Junior: A Level etc)Write the following queries in SQL. No duplicates should be printed in any of theanswers.i. Find the names of all Juniors (level = A Level) who are enrolled in a classtaught by Prof. Kwizeraii. ii. Find the names of all classes that either meet in room R128 or have five ormore Students enrolled.iii. Find the names of all students who are enrolled in two classes that meet atthe same time.
The table STUDENT has the attributes STUDENT_ID, NAME, SCHOOL_ID, and ADDR. The table SCHOOL has the attributes SCHOOL_ID, NAME, and STATE_CODE. Assume that there is a 1:N relation between SCHOOL and STUDENT. Which of the following creates a table that shows the STUDENT attributes and the corresponding SCHOOL attributes? a. SELECT * SCHOOL_ID FROM STUDENT JOIN SCHOOL b. SELECT * SCHOOL_ID FROM STUDENT JOIN SCHOOL USING(SCHOOL_ID) c. SELECT * SCHOOL_ID FROM STUDENT NATURAL JOIN SCHOOL d. SELECT * SCHOOL_ID FROM STUDENT, SCHOOL WHERE SCHOOL_ID = SCHOOL_ID
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How relation listening important?
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Consider the relation r(A, B, C), where the index is the attribute A. Give an example of a query that can only be answered by looking at the index rather than the relationship's tuples. (Index-only plans are query plans that rely just on the index rather than the actual relation.)