Consider the following relations about NBA: P LAY ER(pid, pname, nation). Each tuple describes a player with pid being the player’s id, 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 tname
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Consider the following relations about NBA:
P LAY ER(pid, pname, nation). Each tuple describes a player with pid being the player’s
id, 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 tname
its 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 played
for.
(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 player played
in all the years through 2010, 2011, 2012, ..., 2020).
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- Q7: An ERD about a company has been mapped to the following Relations. Please choose the correct statement that describes the company Employee(ID,E.Name, Salary) Project(Name, Location, ID) Project Location(Name, Location) a. A company has several projects and employees. An employee can work on one or more projects. A project can be located at several locations b. A company has several projects and employees. An employee can work on a single project only and each project has several employees. A project can be located at several locations c. A company has several projects and employees. An employee can work on one or more projects. A project is located at a single location d. A company has several projects and employees. An employee can work on one project only. A project can be located at several locations Employee EID 001 002 003 004 005 006 Name Ahmad Ali Sameh Salem Huda Ali Department group by Name order by EID; a. TWO columns and FOUR records b. TWO columns and ONE record c. TWO…Q1. Create these two relations, then insert the tuples. (Instructor relation: ID is PK, dept_name is FK, set name not null and unique, every tuple in salary must be greater than 35000 and less than 100000) (Department relation: dept_name is PK) Department dept_name building budget Biology Comp. Sci. Elec. Eng. Watson 90000 Taylor Taylor Painter 100000 85000 Finance 120000 History Painter 50000 Music Packard 80000 Physics Watson 70000 Instructor ID dept name salary name Comp. Sci. Finance 10101 Srinivasan 65000 12121 Wu 90000 15151 Mozart Music 40000 Physics History Physics Comp. Sci. History Finance 22222 Einstein 95000 32343 El Said 60000 33456 Gold 87000 45565 Katz 75000 58583 Califieri 62000 76543 Singh 80000 76766 Crick Biolo 72000 Comp. Sci. Elec. Eng. 83821 Brandt 92000 98345 Kim 80000Employee: (EID, Name, City, Address) Department: (DID, Department_Name, City, budget) Works IN: (EID, DID, Annual_Salary, Start_Date) Manages: (ManagerID, DepartmentID, rank) DID and EID in Works_IN relation are foreign keys referencing the primary keys of the Department and Employee relations respectively. Manager_ID and Department_ID in the Manages relation are foreign keys referencing the primary keys of the Employee and Department respectively. From the relational schemas illustrated above, use the different relational algebra operators and operations (p, o, n, N, U, -, A) discussed in class to build the following queries: 1. Display employees (by name and address) from "Chicago" and with an annual salary between 60000 (included) and 90000 (excluded) then rename the output as "ChicagoEmployees" 2. For each employee, who works in the "Design" department since January 2009, display the employee's name and the employee's annual salary 3. Find the name and rank of the manager who…
- PLZ help with the following: Course(course_id,course_name, credit) Here the course_id, course_name, credit are __________ and course is a _________ Select one: a. Relations, Attribute b. Attributes, Relation c. Tuple, Attributes d. Tuple, RelationGiven the following table schemas (definitions) where "bid" is boat id, "name" is boat name, "sname" is sailor name and "sid" is sailorid: Sailors(sid: integer, sname: string, rating: integer, age: real) Boats(bid: integer, bname: string, color: string) Reserves(sid: integer, bid: integer, day: date) Which one of the below given queries "Finds the names of sailors who have reserved two different boats on the same day." SELECT S.sname, FROM Sailors S, Reserves R1, Reserves R2 WHERE (S.sid - R1.sid OR S.sid - R2.sid) AND (R1.day R2.day AND R1.bid R2.bid) Ob SELECT S.sname, FROM Sailors S, Reserves R1, Reserves R2 WHERE R1.sid = R2.sid AND R1.day-R2.day AND R1.bid R2.bid O SELECT S.sname. FROM Sailors S, Reserves R1, Reserves R2 WHERE R1.sid-R2.sid AND R1.day=R2.day AND R1.bid = R2.bid Od. SELECT S.sname, FROM Sailors S, Reserves R1, Reserves R2 WHERE S.sid -R1.sid AND S.sid - R2.sid AND R1.day=R2.day AND R1.bid =R2.bid O SELECT S.sname. FROM Sailors S, Reserves R1, Reserves R2 WHERE…39 Refer to the following ER diagram to answer the question below: PK Student SSN Name Year GPA How are keys used in these relations? PK PK Registration CampusID SSN EnrollmentDate Graduation Date PK O The CampusID attribute in the Registration relation is a candidate key. O The SSN and CampusID attributes in the School and Student relations areforeign keys. The CampusID and SSN attributes in the Registration relation are foreign keys. O The SSN attribute in the Registration relation is a candidate key. School CampusID Name Address X PERHI
- Employee: (EID, Name, City, Address) Department: (DID, Department_Name, City, budget) Works_IN: (EID, DID, Annual_Salary, Start_Date) Manages: (ManagerID, DepartmentID, rank) DID and EID in Works_IN relation are foreign keys referencing the primary keys of the Department and Employee relations respectively. Manager_ID and Department_ID in the Manages relation are foreign keys referencing the primary keys of the Employee and Department respectively. From the relational schemas illustrated above, use the different relational algebra operators and operations (p, 6, n, n, U, -, A) discussed in class to build the following queries: Display employees (by name and address) from "Chicago" and with an annual salary between 60000 (included) and 90000 (excluded) then rename the output as "ChicagoEmployees" 1. 2. For each employee, who works in the "Design" department since January 2009, display the employee's name and the employee's annual salary 3. Find the name and rank of the manager who…Employee: (EID, Name, City, Address) Department: (DID, Department_Name, City, budget) Works_IN: (EID, DID, Annual_Salary, Start_Date) Manages: (ManagerID, DepartmentID, rank) DID and EID in Works_IN relation are foreign keys referencing the primary keys of the Department and Employee relations respectively. Manager_ID and Department_ID in the Manages relation are foreign keys referencing the primary keys of the Employee and Department respectively. From the relational schemas illustrated above, use the different relational algebra operators and operations (p, o, n, N, U, -, X) discussed in class to build the following queries: Display employees (by name and address) from "Chicago" and with an annual salary between 60000 (included) and 90000 (excluded) then rename the output as "ChicagoEmployees" 1. 2. For each employee, who works in the “Design" department since January 2009, display the employee's name and the employee's annual salary 3. Find the name and rank of the manager who…Given the following relations (the primary keys are underlined): MATCH (CodM, Home Team VisitingTeam, Date,League) PLAYER (CodP, Name, Surname, Role, Nation, Team) GOAL (CodP, CodM, MinutesIntoTheMatch) YELIOW-CARDS (CodP, CodM, MinutesIntoTheMatch) Please note that MinutesIntoTheMatch indicates the time at which either the goal was scored or the yellow card was cautioned (e.g.. between 1st and 90th). Write SQL Query for each match in which no more than 2 players playing as defender (role= Defender) were cautioned with a yellow card, show match code date on which the match was held, and total number of goals scored by each player
- Look at the 4 entities below and assume that customer_id is the key common to all tables. • Customer: An entity that describes a customer. An instance occurs for unique customers only using name, date of birth, and login name as customer_id primary key. • Online: An entity that describes a customer purchasing activity online. An instance occurs when the customer completes the transaction. Customers can purchase more than once. • Visits: An entity that describes a customer purchase in a physical store. An instance occurs if a customer makes or purchase or checks-in using an app. Customers can visit more than once per day. • Satisfaction: An entity that represents data from a recent customer satisfaction survey. An instance occurs when a customer takes the survey. A customer is tracked by login name and can only take the survey one time. Use the information to match the following relationships. Answers can be reused more than once. The relationship between Customer and Online The…Given the following relations (the primary keys are bold): MATCH (CodM, Home Team VisitingTeam, Date,League) PLAYER (CodP, Name, Surname, Role, Nation, Team) GOAL (CodP, CodM, MinutesIntoTheMatch) YELIOW-CARDS (CodP, CodM, MinutesIntoTheMatch) Please note that MinutesIntoTheMatch indicates the time at which either the goal was scored or the yellow card was cautioned (e.g.. between 1st and 90th). Write SQL Query for each player who scored 1 least one goal within the first twenty minutes into the match for at least a fifth of the matches in which he scored in 2019, show name, sumame, and nationality of the playerGiven the following relations (the primary keys are bold): MATCH (CodM, Home Team VisitingTeam, Date,League) PLAYER (CodP, Name, Surname, Role, Nation, Team) GOAL (CodP, CodM, MinutesIntoTheMatch) YELIOW-CARDS (CodP, CodM, MinutesIntoTheMatch) Please note that MinutesIntoTheMatch indicates the time at which either the goal was scored or the yellow card was cautioned (e.g.. between 1st and 90th). Write SQL Query for each AMerican player (nation='America'), find the player's name and surname and the date on which he scored the former goal in his career.
