CSCI Design of Database Systems Spring 2016

Transcription

1 CSCI Design of Database Systems Spring 2016 Suggested Solution for HW #6 (1) For example: (a) (b) (c) π Title (Play) π First, Last, (σ = Houston (Member)) π First, Last, Phone (σ = Houston (Patron) x σ PerformanceId=123 (TicketSale)) (d) π First, Last, Phone, (Patron x TicketSale x Performance x Production x σ Title= To eat, or not to eat (Play)) (e) π First, Last (Patron x (σ SaleId <> SaleId_2 (π SaleIId, (TicketSale) x (ρ SaleId_2/SaleId (π SaleIId, (TicketSale)))))) (2) For example: (a) (b) {(p.title) p ϵ Play} {(m.first, m.last, m. ) m ϵ Donor, m. = Houston } (c) {(p.first, p.last, p.phone) p ϵ Patron, t ϵ TicketSale, p. = t., p. = Houston, t.performanceid=123} (d) {(p.first, p.last, p.phone, p. ) p ϵ Patron, t ϵ TicketSale, e ϵ Performance, r ϵ production, l ϵ play, p. = t., t.performanceid = e.performanceid, e.productionid = r.productionid, r.playid = l.playid, l.title = To eat, or not to eat } (e) {(p.first, p.last) p ϵ Patron, t1ϵ TicketSale, p. = t1., t2ϵ TicketSale, p. = t2., t1.saleid <> t2.saleid} (3) For example: -- Bare Bone DDL to create the Theatre Group DB of -- HW #5 solution of CSCI Spring 2016 DROP TABLE IF EXISTS Play; CREATE TABLE Play( PlayId Title VARCHAR(100) NOT NULL UNIQUE, Author NumberOfActs Type CONSTRAINT Play_pk PRIMARY KEY(PlayId)

2 DROP TABLE IF EXISTS Production; CREATE TABLE Production( ProductionId Year INT NOT NULL, Season VARCHAR(30) NOT NULL, StartDate DATE, EndDate DATE, PlayId CONSTRAINT Production_pk PRIMARY KEY(ProductionId), CONSTRAINT production_play_fk FOREIGN KEY(PlayId) REFERENCES Play(PlayId) DROP TABLE IF EXISTS Member; CREATE TABLE Member( MemberId Last VARCHAR(30) NOT NULL, First VARCHAR(30) NOT NULL, Street VARCHAR(50), State VARCHAR(15), Phone VARCHAR(12), VARCHAR(60), OfficeTitle VARCHAR(25), CONSTRAINT member_pk PRIMARY KEY(MemberId) DROP TABLE IF EXISTS Role; CREATE TABLE Role( RoleId VARCHAR(20) NOT NULL, ProductionId MemberId CONSTRAINT role_pk PRIMARY KEY(RoleId), CONSTRAINT role_production_fk FOREIGN KEY(ProductionId) REFERENCES CONSTRAINT role_member_fk FOREIGN KEY(MemberId) REFERENCES Member(MemberId) DROP TABLE IF EXISTS Task; CREATE TABLE Task( TaskId VARCHAR(20) NOT NULL, Description VARCHAR(100), ProductionId

3 MemberId CONSTRAINT task_pk PRIMARY KEY(TaskId), CONSTRAINT task_production_fk FOREIGN KEY(ProductionId) REFERENCES CONSTRAINT task_member_fk FOREIGN KEY(MemberId) REFERENCES Member(MemberId) DROP TABLE IF EXISTS Venue; CREATE TABLE Venue( VARCHAR(50) NOT NULL, CONSTRAINT venue_pk PRIMARY KEY() DROP TABLE IF EXISTS Performance; CREATE TABLE Performance( PerformanceId Date Date NOT NULL, Time Time NOT NULL, ProductionId CONSTRAINT performance_pk PRIMARY KEY(PerformanceId), CONSTRAINT performance_ck_1 UNIQUE(Date, Time, ), CONSTRAINT performance_production_fk FOREIGN KEY(ProductionId) REFERENCES CONSTRAINT performance_venue_fk FOREIGN KEY() REFERENCES Venue() DROP TABLE IF EXISTS Patron; CREATE TABLE Patron( Last VARCHAR(30) NOT NULL, First VARCHAR(30) NOT NULL, Street VARCHAR(50), State VARCHAR(15), Phone VARCHAR(12), VARCHAR(60), CONSTRAINT patron_pk PRIMARY KEY() DROP TABLE IF EXISTS Seat; CREATE TABLE Seat( SeatId Row VARCHAR(2), NUMBER SMALL

4 Type VARCHAR(2), Price DECIMAL(7,2), CONSTRAINT seat_pk PRIMARY KEY(SeatId), CONSTRAINT seat_venue_fk FOREIGN KEY() REFERENCES Venue() DROP TABLE IF EXISTS TicketSale; CREATE TABLE TicketSale( SaleId SaleTime DATETIME NOT NULL, Total DECIMAL(9,2) NOT NULL, PerformanceId CONSTRAINT ticketsale_pk PRIMARY KEY(SaleId), CONSTRAINT ticketsale_performance_fk FOREIGN KEY(PerformanceId) REFERENCES Performance(PerformanceId), CONSTRAINT ticketsale_patron_fk FOREIGN KEY() REFERENCES Patron() DROP TABLE IF EXISTS SaleItem; CREATE TABLE SaleItem( SaleItemId SaleId SeatId CONSTRAINT saleitem_pk PRIMARY KEY(SaleItemId), CONSTRAINT saleitem_sale_fk FOREIGN KEY(SaleId) REFERENCES TicketSale(SaleId), CONSTRAINT saleitemseat_fk FOREIGN KEY(SeatId) REFERENCES Seat(SeatId) DROP TABLE IF EXISTS Corporation; CREATE TABLE Corporation( CorporationId VARCHAR(60) NOT NULL, Street VARCHAR(50), State VARCHAR(15), CONSTRAINT corporation_pk PRIMARY KEY(CorporationId), CONSTRAINT corporation_patron_fk FOREIGN KEY() REFERENCES Patron()

5 DROP TABLE IF EXISTS Donation; CREATE TABLE Donation( DonationId Amount DECIMAL(10,2) NOT NULL, Time DATETIME NOT NULL, Type Description VARCHAR(100), ProductionId CorporationId CONSTRAINT donation_pk PRIMARY KEY(DonationId), CONSTRAINT donation_production_fk FOREIGN KEY(ProductionId) REFERENCES CONSTRAINT donation_patron_fk FOREIGN KEY() REFERENCES Patron(), CONSTRAINT donation_corporation_fk FOREIGN KEY(CorporationId) REFERENCES Corporation(CorporationId) DROP TABLE IF EXISTS MemberDue; CREATE TABLE MemberDue( MemberDueId Year SMALL Amount DECIMAL(6,2) NOT NULL, PaymentDate DATETIME NOT NULL, MemberId CONSTRAINT memberdue_pk PRIMARY KEY(MemberDueId), CONSTRAINT donation_member_fk FOREIGN KEY(MemberId) REFERENCES Member(MemberId)