Consider the database schema below. Fruit (ID: integer, Name: String ) Vitamin (FruitID: Integer. VitaminName: String, VitaminPercentage) Two Fruit records with different FruitID can have the same Name? O Yes. O No, violates key constraint. O No, violates referential integrity constraint. O No, violates domain constraints. No, violates entity Integrity constraint

Consider the database schema below. Fruit (ID: integer, Name: String ) Vitamin (FruitID: Integer. VitaminName: String, VitaminPercentage) Two Fruit records with different FruitID can have the same Name? O Yes. O No, violates key constraint. O No, violates referential integrity constraint. O No, violates domain constraints. No, violates entity Integrity constraint

A Guide to SQL

9th Edition

ISBN:9781111527273

Author:Philip J. Pratt

Publisher:Philip J. Pratt

Chapter2: Database Design Fundamentals

Section: Chapter Questions

Problem 5TD

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Which of the following defines a relationship in which data can have multiple occurrences in each entity? one-to-one one-to-many many-to-many none of the above
Assignment Brief: Some of the most difficult decisions that you face as a database developer are what tables to create and what columns to place in each table, as well as how to relate the tables that you create. Normalization is the process of applying a series of rules to ensure that your database achieves optimal structure. Normal forms are a progression of these rules. Each successive normal form achieves a better database design than the previous form did. Based on your understanding for the various normal form respond to the following problems and provide the optimal answer/solution. Problem#1: 1st Normal Form (1NF) Consider the Students table, with the primary key underlined, and the following data: Students: Alpha 100111 Email doe@usna.edu Name Courses GradePoints NN204, SI204, IT221 SM223, EE301 SI204 John Doe 2,3,3 Matt Smith 092244 113221 smith@usna.edu black@usna.edu 4,4 Melinda 3 Black NN204, SI204, IT221 090112 Tom Johnson Johnson@usna.ed 4,2,3 u a) Is the Students table…
name ID admit_date SSN address phone Patient responsible Physician Room id {disjoint,complete) 0..2 Room assigned ISA bed# 1.1 out Patient resident Patient assigned bed (disjoint,complete} Checkback_date discharge_date ISA ICU bed Regular bed Provide a complete Relational Schema of the database described by the following Entity Relationship diagram. You must use Merge Rule whenever possible.
true /false The system-defined database used as a template for all “to be created” databases is the tempdb database. The entire contents of this database, including database options, are copied to the new database. Thus, if you modify this database, all databases created afterward will inherit those changes. OUTER JOIN types return only non-matching tuples. When we create a primary key (PK) some Database Management Systems (DBMS) automaticallly create a Foreign Key constraint on the attributes of the PK. SQL Server DBMS is one of these DBMSs. If a relation has more than one candidate key, we can implement this by creating a Primary Key constraint for one of the candidate keys, and a UNIQUE constraint for each and every one of the alternate keys. Using the Query Editor Window, “select TOP 1000 Rows” retrieves the first 1000 tuples of a relation (assuming that the relation has 1000 or more tuples). If there is…
Subject: Database Topic: EERD -Based on the information given below, draw the conceptual EERD where you should include the enhanced features. [Using UML Design] You are required to design a database for a car championship. The requirements are as follows: In the championship, each car’s information such as the car model, the top speed and the acceleration will be stored, and it is identifiable through a unique car ID. Each car will be drove by only one driver. Each driver’s info such as the unique driver number, driver name and the experience level of the driver are stored as well. A driver may have many trainers from more experience drivers and these experience drivers would have at least one trainee who follow them. Each of these drivers are usually supported by a team which each team have a name and is identifiable through the team number. Usually, a team would have at least one driver in the race. Every race would have a specific race ID and a race name. In a race would consists of…
Database course: Convert the following ER diagram into a relational database schema, be certain to indicate primary keys and referential integrity constraints. (The photos complete each other) (I need the answer to copy it please)
Hints: 4:14 1 ● Option 2 1. Specify all the relationships among the records of the database shown below. Assignment Details COP5725 RVC 1231 • A relationship, in the context of databases, is defined as a situation that exists between two tables. COURSE Cary mat ● Example 1: STUDENTS take SECTIONS Example 2: SECTIONS are of specific COURSES STUDENT Name Student_number Class Smith 17 1 Brown 2 SECTION 8 Course_name Intro to Computer Science Data Structures Discrete Mathematics Database GRADE_REPORT Student_number 17 17 N Section_identifier Course_number 85 MATH2410 92 CS1310 102 CS3320 112 MATH2410 119 CS1310 135 CS3380 Major CS CS Course_number Credit_hours Department CS1310 4 CS CS3320 4 CS MATH2410 MATH CS3380 CS Section_identifier 112 119 Semester Year Fall 07 Fall 07 08 08 08 08 Spring Fall Fall Fall . . .... ..... Grade B C 3 3 Submit Assignment Module 1 | Introduction to DBMS | 1 week Instructor King Anderson Knuth Chang Anderson Stone >
List the advantages and disadvantages of the three types of restrictions below. Support your response with examples: Rules and Defaults Constraints Triggers Briefly explain how and why one would need to add and/or remove constraints from a database.
whatsapp.cc 15100224O Database Final Exam A relation with two atributes A and B satisfies the functional dependency A B Them the functional dependency B >A also holds in the relation. 1.00 tion Select one Ob. False EVIOUS PAGE
1.5) An attribute can be atomic, composite, or multivaluedTrue False 1.6) Constraints should be used to force valid data entry / modification to the databaseTrue False 1.7) A primary key can contain only single row with null value since duplicate values are not allowedTrue False 1.8) Comparison with null can be meaningfully done with equals and not equals operatorTrue False 
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Q3. The following questions are based on the database schema described below. The keys are underlined. Student(Name, StudentNumber, Class, Major) Course(CourseName, CourseNumber, CreditHours, Department) Prerequisite(CourseNumber, PrerequisiteNumber) Section(SectionIdentifier, CourseNumber, Semester, Year, Instructor) Grade_Report(StudentNumber, SectionIdentifier, Grade) (a) Write the following query in SQL: Retrieve the student number, name and major of all students who do not have a grade of D or F in any of their courses, and sort them by increasing order of student питber. (b) Translate the query of part (a) into a query tree. (c) Pick a join from the query tree and discuss whether it is better to use Nested-Loops or Sort-Merge join algorithm to evaluate it. Give reasons for your choice.

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