age gender customer ID Customers first_name name zip code last_name makes total transaction_date Transactions M payment method transaction ID contains quantity N upc quantity_in_stock Products brand marked_price Product_name category Product_description a) Convert the above ER diagram into relational schemas. In a PDF file, specify the followings for each relation (i) the name of the relation, (ii) the names of its attributes, (iii) the domain of each attribute, (iv) the primary key, and (v) the foreign key(s), if any.

Q: Based on the properties of a relation, explain why the following is not an example of a relation:…

A: The given table has duplicate rows. Row1 and 2 are duplicated Row 4 and 5 are duplicated

Q: ID name Courses M semester Teaches N ID name Professors Convert the above ER diagram to relations in…

A: SOLUTION -From the above Entity Relationship Diagram, we can identify three tables. They are1)…

Q: Vendor order (vendor no, order no, vendor name, qty provided, price/unit) is a second normal form…

A: Vendor order data is an essential component of many business processes, and it is important to have…

Q: Name ID School City (0,n) Salary Start Date End Date To Hire (0,n) Teacher Birth Date Student

A: The solution is an given below : Note: since you have posted multiple questions, we will provide the…

Q: You are to design a Hospital database. So before creating the database, your task is to design the…

A: This is very simple. An ER diagram, called an entity-relationship model, describes the interest in a…

Q: N:M relationships  a.) require that the primary key from each table is deleted.   b.) require that a…

A: Here is the solution;

Q: What are the conditions under which an attribute of a relation may have a changeable length?

A: Introduction: An attribute is defined as a trait or characteristic found in a person, a place, or an…

Q: A attribute in a relation is a foreign key if the _______ key from one relation is used as an…

A: A foreign key is a key used to link two tables together. This is sometimes also called as a…

Q: A foreign key can refer to only the candidate key of another relation. (a) True (b)False

A: A foreign key is a field or a set of fields (columns) in a relational database table that is used to…

Q: A relation cannot have: Multi-values attributes Several super-keys O Composite attributes Attributes…

A: Answer:

Q: Part of the primary key may not determine a non-key field.

A: If any relation/table is in second normal form means it dont have any partial functional…

Q: Type ISBN eBook RelationName2 (AttrName1) Primary key {AttrName1) Price Book N Order Hardcopy Date…

A: Here are the resulting relation tables from the given E-R diagram:Table Book:Primary Key:…

Q: What are three advantages of using a surrogate key rather than the main key to access a relation…

A: A surrogate key is a one of a type of identifier for a record or item in the table. It is comparable…

Q: Write a relation from a given digraph. b) Determine properties. c) Write in a matrix form.

A: Consider the given digraph:

Q: The type of algorithm in which decomposition of relation schema is constructed from other specific…

A: Certain algorithms are used to create relational decomposition from a set of relationships in…

Q: Computer science What is the relationship between the primary key of a relation and the…

A: The Answer is in step2

Q: Schema: Part(PartNo, PartName, VehicleType, UnitPrice, SalesPrice) Service(ServiceNo, PartNo,…

A: CREATE OR replace FUNCTION getprofit (    p_part_number IN NUMBER) RETURN NUMBER IS    l_part_name…

Q: What does it mean to be related? How do you define a relation's properties?

A: Relation is a property of set that we study in discrete math. Two set be said as related when it…

Q: How does a relation's primary key affect its attributes' functional dependencies?

A: Introduction: Relational databases are widely used in modern computing systems to store and manage…

Q: A_ _is a property of the entire relation, rather than of the individual tuples in which each tuple…

A: 1) A key in DBMS is an attribute or a set of attributes that help to uniquely identify a tuple (or…

Q: is the number of attributes/fields in a relation. a. Degree b. Cardinality O c. Tuple d. Row

A: Degree: In DBMS, degree is the number of attributes or column present in the table Cardinality: In…

Q: First normal form a) prohibits multi-valued attributes b) prohibits composite attributes c) is…

A: In the context of relational databases, A normal form is a set of rules that a database schema must…

Q: write the schema that descibes the following relations: 1- The course relation course id title dept…

A: A Schema can be explained as a structure or the organisation chart of the database in the computer…

Q: Implement a new independent entity phone in the Sakila database. Attributes and relationships are…

A: There is only one error in the above code and that is the ALTER TABLE command on the address table.…

Q: Book (BookID, Price, Year, Author, Subject) BorrowLog (BID, BookID, CustomerID, DateTime) Customer…

A: DDL or Data Definition Language actually consists of the SQL commands that can be used to define the…

Q: . A relational database developer refers to a record as a. a criteria b. a relation c. a tuple d. an…

A: c) a tuple

Q: What are three criteria that indicate that a surrogate key for a relation's main key should be…

A: Surrogate key: It is a key that does not have any contextual meaning but is used to identify the…

Q: A relation takes a students identification number at your college as input and outputs the students…

A: A relation takes a students identification number at your college as input and outputs the students…

Q: How does Second Normal Form (2NF) differ from Third Normal Form (3NF), and why might you choose one…

A: Second Normal Form (2NF) and Third Normal Form (3NF) are stages of normalization in database design,…

Q: Design: An (ER) and (relational Diagram) by showing as I am an owner of a car rental company…

A: Answer :

Q: Instructions: Create a complete ERD in Crow's Foot notation that can be implemented in the…

A: a) Crowfoot Notation:

Q: Realtional database SQL question 14) If  Tables T1 and T2 are connected as „one to one”  than :…

A: Given If Tables T1 and T2 are connected as „one to one” than : Both tables must have the same…

Q: Task 4: As a part of marketing strategy, the Marketing team continuously conducting an advertising…

A: Actually, database is a used to stores the data.

Q: What does it mean to be related? How do you define a relation's properties?

A: Introduction: A relation is a table that has two dimensions. It is divided into rows (tuples) and…

Q: What is the connection between the primary key of a relation and the functional relationships that…

A: Introduction Functional dependency: A connection between two qualities is termed functional…

Q: 26. Table is synonymous with the term: a. record b. relation c. column d. field

A: a database language for relational databases, relations are represented by tables, where each row of…