Q. Find out candidate keys, dependencies and normalize the following table upto 3NF. C_ID C_Name Prop Address Rent Start From Finish Owner ID Qwner Name # C56 Usama P4 ISB 15000 10-10-2018 1-08- O_32 Bilal P16 LHR 9000 01-09-1986 2019 0_40 Junaid 28-09- 1988 C76 Babar P4 ISB 15000 15-01-2000 22-12- O_32 O_40 Q.40 Bilal P36 RWP 8000 28-08-2007 2001 Junaid P16 ISB 9000 01-10-2011 28-10- Junaid 2009 28-02-

Q. Find out candidate keys, dependencies and normalize the following table upto 3NF. C_ID C_Name Prop Address Rent Start From Finish Owner ID Qwner Name # C56 Usama P4 ISB 15000 10-10-2018 1-08- O_32 Bilal P16 LHR 9000 01-09-1986 2019 0_40 Junaid 28-09- 1988 C76 Babar P4 ISB 15000 15-01-2000 22-12- O_32 O_40 Q.40 Bilal P36 RWP 8000 28-08-2007 2001 Junaid P16 ISB 9000 01-10-2011 28-10- Junaid 2009 28-02-

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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Q2: A-Given the following tables: Student Subject Std_ID 001 002 003 004 Fname Smith Smith Beal Thomson Lname Jolin Susan Fred Marie Std_ID 001 001 002 002 003 Semester 004 Falls03 Spro4 Falls03 C_ID Eng01 Ger01 Eng01 Ger01 Ger01 CSection Spro4 Spro4 Spro4 1. For each table in the database, identify the primary key and the foreign key(s). 2. Do the tables exhibit entity integrity? Explain your answer? 3. Do the tables exhibit referential integrity? Explain your answer? Ita01 ZZZZZZ IN 2N IN 2N IN CName English IN German English German German Italian Grade A B A B A B
Using the WideWorldDistributors database and the Sales schema create a function that takes InvoiceID as an input parameter and returns all the rows from the table InvoiceLines for the InvoiceID value passed into the function. If the result is a NULL return a zero
Table: Author Author_ID DZN9010 VC8931 STA7686 iv. a. How can we remove the transitive dependencies from the table above? i. Create a separate Name table with Author_ID as primary key ii. Create a separate Book table with Book_ID as primary key iii. Create a separate Origin table with Origin_ID as primary key Create a Book_ID and make it a foreign key in Author table ii, iii Author_Name J.K. Rowling Arthur Conan Doyle Suzanne Collins b. ii, iii, iv c. i, ii, iv d. il only Book Title Harry Potter Sherlock Holmes Hunger Games Author_Origin England Scotland USA
xplain Local Descriptor Table?
In this database we have users that can be two types students or instructors. They have groups and memberships. Any user can post and the post type can be video, photo or text. Here is the table structure: CREATE TABLE USER_ ( USER_ID INT NOT NULL AUTO_INCREMENT, CREATE_DATE DATE NOT NULL, PROF_DESC VARCHAR (100), PROF_PIC VARCHAR(40), LOCATION VARCHAR (40) NOT NULL, PRIMARY KEY (USER_ID) ); CREATE TABLE USER_INFO( USER_ID INT NOT NULL, SU_EMAIL CHAR(18), USER_FNAME VARCHAR(15), USER_LNAME VARCHAR (15), USER_DOB DATE, USER_GENDER CHAR(1), PRIMARY KEY (USER_ID), FOREIGN KEY (USER_ID) REFERENCES USER_(USER_ID) ON UPDATE CASCADE ); CREATE TABLE STUDENT ( SU_ID INT NOT NULL, USER_ID INT NOT NULL, YEAR_ VARCHAR (10), MAJOR VARCHAR (20), LOCATION VARCHAR (40) NOT NULL, PRIMARY KEY (SU_ID), FOREIGN KEY (USER_ID) REFERENCES USER_(USER_ID) ON UPDATE CASCADE ); CREATE TABLE INSTRUCTOR ( SU_ID INT NOT NULL, USER_ID INT NOT NULL, DEPARTMENT VARCHAR (40), INSTR_TYPE VARCHAR (40),…
true/false INNER JOIN combines two relations. It takes the second relation, and appends it to the end of the first relation. In Corelated Subqueries, subquery is executed independent of the outer query: subquery is executed only once. SELECT * FROM sys.Relations displays information about all the user-defined relations within a database. Given GENDER and STUDENT relations, SELECT Gender, FName, LName FROM GENDER LEFT OUTER JOIN STUDENT ON STUDENT.GenderCode = GENDER.GenderCode ≡ SELECT Gender,FName, LName FROM STUDENT RIGHT OUTER JOIN GENDER ON STUDENT.GenderCode = GENDER.GenderCode The statements select RIGHT('I wish I had attended the practice hours', 9) and select…
Access Assignment Problem: JMS TechWizards is a local company that provides technical services to several small businesses in the area. The company currently keeps its technicians and clients’ records on papers. The manager requests you to create a database to store the technician and clients’ information. The following table contains the clients’ information. Client Number Client Name Street City State Postal Code Telephone Number Billed Paid Technician Number AM53 Ashton-Mills 216 Rivard Anderson TX 78077 512-555-4070 $315.50 $255.00 22 AR76 The Artshop 722 Fisher Liberty Corner TX 78080 254-555-0200 $535.00 $565.00 23 BE29 Bert's Supply 5752 Maumee Liberty Corner TX 78080 254-555-2024 $229.50 $0.00 23 DE76 D & E Grocery 464 Linnell Anderson TX 78077 512-555-6050 $485.70…
Not all versions of this database include referential integrity constraints for all foreign keys. Use whatever commands are available for the RDBMS you are using, investigate if any referential integrity constraints are missing. Write any missing constraints and, if possible, add them to the associated table definitions.
Write a script that attempts to insert a new category named “Guitars” into the Categories table. If the insert is successful, the script should display this message: SUCCESS: Record was inserted. If the update is unsuccessful, the script should display a message something like this: FAILURE: Record was not inserted. Error 2627: Violation of UNIQUE KEY constraint 'UQ__Categori__8517B2E0A87CE853'. Cannot insert duplicate key in object 'dbo.Categories'. The duplicate key value is (Guitars).
Find the Primary Keys and P3,6 for the database: Make Model Engine ID Ford Mustang Ford Fiesta Chevy Camaro Chevy Caprice Olds Cutlass Olds Cutlass Volvo P1800 Volvo 240 Volvo 760 Year 1972 A1222 1989 C54322 1991 754342AH 1989 442355CC 1992 ANDU33 1992 ANGH28 1969 44325XX 1986 53526PD 1992 578868R Vehicle ID FO13579 FO24245 CH172389 CH156738 OL64332 OL61998 V044526 VO64690 V083529 Color Black Yellow Black Yellow Blue White White Black Blue
Write Mysql code for: The database has three tables for tracking horse-riding lessons: Horse with columns: ID - primary key RegisteredName Breed Height BirthDate Student with columns: ID - primary key FirstName LastName Street City State Zip Phone EmailAddress LessonSchedule with columns: HorseID - partial primary key, foreign key references Horse(ID) StudentID - foreign key references Student(ID) LessonDateTime - partial primary key Write a SELECT statement to create a lesson schedule for Feb 1, 2020 with the lesson date/time, student's first and last names, and the horse's registered name. Order the results in ascending order by lesson date/time, then by the horse's registered name. Make sure unassigned lesson times (student ID is NULL) appear in the results. Hint: Perform a join on the LessonSchedule, Student, and Horse tables, matching the student IDs and horse IDs.
Task 2: The Car Maintenance team also wants to store the actual maintenance operations in the database. The team wants to start with a table to store CAR_ID (CHAR(5)), MAINTENANCE_TYPE_ID (CHAR(5)) and MAINTENANCE_DUE (DATE) date for the operation. Create a new table named MAINTENANCES. The PRIMARY_KEY should be the combination of the three fields. The CAR_ID and MAINTENANCE_TYPE_ID should be foreign keys to their original tables. Cascade update and cascade delete the foreign keys. SQL DataBase Test: Create a new table to store maintenance operations Test Query: DESCRIBE MAINTENANCES Expected Results Field Type Null Key Default Extra CAR_ID char(5) NO PRI NULL MAINTENANCE_TYPE_ID char(5) NO PRI NULL MAINTENANCE_DUE date NO PRI NULL