When mapping entities to one another for a relational database, there are several different approaches to take. Describe your thought process when trying to determine the mapping relationship (I.e. 1:M, M:N, 1:1) of two entities.

Q: tionship (ER) diagrams so important for database des

A: Introduction: An entity relationship diagram depicts how these entities are related to one another.…

Q: Which ones are super keys for course? (a) course id (b) course id, title (c) course id, title,…

A: The attributes “course_id” and “title” can be used to identify the rows of “course” table uniquely.…

Q: Explain the differences among external, conceptual, and internal schemas and the reasons for the…

A: The internal schema defines the physical storage structure of the database. The internal schema is a…

Q: Do you have any instances to support your claim that a relational database cannot provide…

A: Relational database: It is a kind of database that can hold connected data items and provides access…

Q: Consider the following relations for a database that keeps track of student enrollment in courses…

A: A relational database is a type of database that keep data and access points that are related to…

Q: Design a Relational Database by Mapping the following Entity-Relationship Diagram (ERD) into…

A:

Q: How should data about customer contact details and data about their orders be stored in a database?…

A: Here customer is an entity since it has its own attribute.  Now order can be considered as one more…

Q: There are two basic ways to design a well-structured relational database. The method in which a…

A: A database system as the management system as the file of the processing as the based service of the…

Q: Why do you think entity relationship (ER) diagrams in database design are necessary?

A: Entity Relationship Diagram is a conceptual, graphical, and logical structure of a database. Entity…

Q: Convert the following ER diagram into a relational database schema, be certain to indicate primary…

A:

Q: When working with database entity relationship modeling, should the cardinality between entities be…

A: Cardinality: The maximum or minimum number of elements allowed on each side of the relationship in…

Q: please answer all the questions. much thanks Question Al The relational model below (in Figure 1)…

A: Answer

Q: Explain the differences between user views, a conceptual schema, and an internal schema as different…

A: Differences between user views, a conceptual schema, and an internal schema.

Q: A database table is in 2nd Normal form if it is in 1 normal form and A. All non-key fields depend on…

A: A relational database is in 2NF , if it is firstly in 1NF that is free from Multivalued attribute…

Q: Does the fact that a database satisfies the requirements for entity and referential integrity…

A: Does the fact that a database satisfies the requirements for entity and referential integrity…

Q: Assume that you have to design a databaseto manage books issued by your universitylibrary.…

A: Primary key column has unique data. It uniquely identifies record in a relational database table.…

Q: ER-diagrams are high-level design of the Database. The given ER-diagram describes the Dentist…

A: Weak entities are represented with double rectangular box in the ER Diagram      office, supplier,…

Q: Create an entity relationship diagram and the relational diagram to show relationship between all…

A: ERD :

Q: Consider the following relations for a database that keeps track of student enrollment in courses…

A: The answer has given below :

Q: When you say "functional dependence" and "transitive dependency" with regard to database management…

A: "functional dependence" and "transitive dependency" are discussed below.

Q: Tours as shown in Figures 1-4 through 1-8 in Chapter 1.

A: the shorthand representation of the structure of a relational database.please attached your figure

Q: ER Mapping : Convert the ER diagram into a relational database schema. For each relation, specify…

A: Relational Model: Entities: Bank Code Name Addr Bank Branch BranchNo Addr Account…

Q: What

A: Primary key In the diagram, the primary key for section is sec_id. A primary key is a key in…

Q: Explain the terms "information repetition" and "inability to express information." Explain why each…

A: A Relational database architecture should be well structured so as easily retrieve the amount of…

Q: In general terms, describe the main logical database design techniques and how they relate to each…

A: In general terms, describe the main logical database design techniques and how they relate to each…

Q: List three common scenarios in which relations should be denormalized prior to database…

A: Introduction: A normalised database typically involves combining several tables to get queries;…

Q: List three common situations that suggest that relations be denormalized before database…

A: List three common situations that suggest that relations be denormalized before database…

Q: Discuss the distinction between centralized and decentralized conceptual database design. Discuss…

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Why do you think entity relationship (ER) diagrams are important in database design?

A: Justification: An entity is a kind of data item or component. In an ER diagram, an entity is…

Q: Database normalization is a very important process in designing and organizing tables (relations)…

A: Database Normalization is a comprehensive means of ensuring that a database configuration is…

Q: Describe the shorthand representation of the structure of a relational database.Illustrate this…

A: Given : Describe the shorthand representation of the structure of a relational database. Illustrate…

Q: Explain what normal form the relation is in. b) Apply normalization until the 3rd State reasons…

A: A)  From the given functional dependency, primary key for the given relation is (Title, Author)  The…

Q: Question #1 The aim of normalization is to eliminate various anomalies (or undesirable aspects) of a…

A: 1. Relational scheme: A relational schema is a database design template that represents the data…

Q: Describe different types of constraints that we can consider when we define the database schema

A: Constraints are the laws that a table's data columns must follow. These are used to restrict the…

Q: To map ERD to relational database, in which there is two entities and one to many relationship…

A: Here we have to store the data of entities and also the relationship that exists between them

Q: Convert the following ER diagram into a relational database schema, be certain to indicate primary…

A:

Q: Consider a database containing personnel information, including names, addresses, and salaries of…

A: First step is to built the database schema using the following query- CREATE SCHEMA `organization`…

Q: Explain why many-to-many relationships cannot occur in a relational database and provide an example…

A: Allow me to illustrate with an example: Consider a straightforward link between Authors and Books, A…

Q: In a database, what is an unnormalized relation? Is it a connection in the conventional sense of the…

A: Given that 'In a database, what is an unnormalized relation? Is it a connection in the conventional…

Q: Consider the following relations for a database that keeps track of student enrollment in courses…

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

Q: n to indicate primary keys and referential integrity constraints.

A:

Q: Produce a relational schema diagram that corresponds to the linked ER diagram for a database for the…

A: The given is a database problem where the relational database is to be created based on the given…

Q: When it comes to database architecture, why do you believe entity relationship (ER) diagrams are…

A: Introduction: An entity-relationship diagram represents a database's conceptual, graphical, and…

Q: Suppose that the initial conceptual design of the Car Rental database consisted  of just a single…

A: The question has been answered in step2

Q: A) Let suppose if you are a database designer, and if you were designing a Web-based System to make…

A: DBMS architecture: There are three levels in DBMS architecture: External level/view level -…

Q: Convert the following ER diagram into a relational database schema, be certain to indicate primary…

A: The main entities of the given ER diagram are: LOT ProductionUnit RawMaterials Hence the…

Q: why many-to-many relationships can't exist in a relational database, and justify with example?

A: Let me explain this with an example:   Try to think of a simple relationship between Authors and…

Q: Read the scenario carefully You have to propose and optimal database design in RDBMS for a super…

A: Solution : 1.Entities: Products table to store the information related to products. Customer table…

Transaction Processing

Transaction processing is a computational style generally performed by server computers, which supports interactive applications (apps). Transaction processing is also known as information processing, which divides the work into indivisible and individual operations called transactions. The transaction is a set of tasks; a single task is considered as the minimum processing unit that cannot be divided again.