n to indicate primary keys and referential integrity constraints.

Q: Subject : Database Management System Question: b. Explain natural join with example.

A: Natural Join: The SQL NATURAL JOIN is a type of EQUI JOIN and in natural join two tables structure…

Q: Does the fact that a database is compatible with entity and referential integrity mean that the…

A: Referential Integrity: The link between tables is described by referential integrity. Because each…

Q: The following relational schema forms part of an Employees database. The primary keys are underlined…

A: Note: As per the policy I answered as much as I can. Please resubmit the question separately which…

Q: Based on the following Bank Class Diagram, give a complete Relational Database Schema Diagram.

A: This is a class model. The diagram  explain  the different classes with different attributes in it

Q: What exactly does it mean that a database is compatible with entity and referential integrity…

A: Intro Data integrity is the act of ensuring the correctness and consistency of data throughout its…

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

A:

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

A: Conversion of above ER diagram to relationship schema is in step 2.

Q: What are the benefits of database and referential integrity, and how might they be beneficial?…

A: Referential integrity is a database concept that assures the consistency of relationships between…

Q: 4. Show the result of the following queries as it would apply to the database state given above. 1.…

A: All distinct student names from Student table whose Major is CS are displayed Name Smith…

Q: Does compliance with entity and referential integrity mean that a database is dependable, or does it…

A: Entity and referential integrity are two forms of data integrity that are particularly important in…

Q: Why are entity integrity and referential integrity important in a database? Give an example of each…

A: 1) The entity integrity states that primary key value can't be null. This is because the primary key…

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: If a database is entity and referential integrity compliant, does this suggest that the database is…

A: Data integrity is the act of ensuring the correctness and consistency of data throughout its life.…

Q: Consider the employee database of Figure 4.12. Give an SQL DDL definition of this database. Identify…

A: Solution: SQL DLL definition of employee database:                           With the help of…

Q: ID library_item title N publishes magazines journal conference_proceeding book publisher date_of…

A: Primary key attributes- magazines- date of publish, date, id journal-volume, number, id book -…

Q: perators discussed in this chapter. Also show the result of each query as it would apply to the…

A: The given problem is related to database SQL queries where the database and sample data is given.…

Q: QUESTION 4 Convert the following ER diagram into a relational database schema, be certain to…

A: Convert ER diagram into relational database schema.

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

A: The answer has given below :

Q: What are constraints in database. Provide a real-world example. What are the consequences If we do…

A: Definition:- The type of data that can be entered into a table is limited by constraints. This…

Q: In your own words describe what are some of the problems caused by incomplete or improper…

A: Here are the different problems that are created when normalization is not done properly:

Q: The following exercises are based on the BITS database user views as designed in Your Turn 6-1 in…

A:

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

A: So, for a coffee shop web based platform, We can have the below few entities and relationship…

Q: The following exercises are based on the BITS database user views as designed in Your Turn 6-1 in…

A:

Q: Create a relational database schema from the ERD in 3.1 showing all tables in 3NF. Each table should…

A: A schema is simply a list of each table name and its fields/attributes in a database as in the…

Q: when a database exhibits both entity and referential integrity?

A: A database exhibits both entity and referential integrity

Q: The following figure present BANK ER diagram. Map it into a full relational schema. Specify all…

A: Given ER diagram contains 5 entities that are Bank, Bank_branch, Account, Loan and Customer. After…

Q: There are several attribute relationships, including partial dependency and transitive, give an…

A: 1.about partial dependency and transitive, 2.The normalization stage in database design, especially…

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: 1- The following figure present BANK ER diagram. Map it into a full relational schema. Specify all…

A: Mapping into full relationship schema and specifing the pk and fk has shown in step2

Q: What exactly is the idea of integrity constraint? When is a database discovered to be entirely…

A: This integrity restriction guarantees data continuity and ensures that data precision and quality…

Q: To what extent should end users be involved in the selection of a database management system and…

A: To what extent should end users be involved in the selection of a database management system and…

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

A:

Q: What are the advantages of applying integrity constraints during database design and implementation…

A: Introduction: What are the advantages of applying integrity constraints during database design and…

Q: Explain ACID transaction rules that should be maintained by database transactional models to achieve…

A: Answer: The ACID transaction rules govern the transaction of a database transaction model. Each…

Q: The following relational schema forms part of an Employees database. The primary keys are underlined…

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

Q: Mạp the following EER Design into a relational database. Specify primary key and referential…

A: There are some steps of converting the EER design to the relational database:

Q: QUESTION 4 Convert the following ER diagram into a relational database schema, be certain to…

A:

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

A: Answer : The Relational  model  of the above scenario is as shown in below :

Q: The following relational schema forms part of an Employees database. The primary keys are underlined…

A: Question. The following relational schema forms part of an Employees database. The primary keys are…

Q: Consider the two relations with their schemas as listed below: Employee(name, suriR birtbRats…

A: The FOREIGN KEY CONSTRAINT IN SQL is used to ensure the referential integrity of the data in one…

Q: Consider the employee database of Figure 4.12. Give an SQL DDL definitionof this database. Identify…

A: Given:- Consider the employee database of Figure 4.12. Give an SQL DDL definitionof this database.…

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: Describe the ACID PROPERTIES that a SQL database must possess. Identify one advantage and one…

A: ACID-related information is very important for organizations in many varieties of industry,…

Q: The following relational schema forms part of an Employees database. The primary keys are underlined…

A: NOTE: As per our company guidelines we are supposed to answer only the first three sub-parts. Kindly…

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: Explain the ACID PROPERTIES that a SQL database must have. Identify one benefit and one drawback of…

A: ACID-related information is very important for organizations in many varieties of industry,…

Enhanced ER Model

The enhanced ER model is an abbreviation for Enhanced Entity-Relationship (EER) model. As you know, the entity-relationship (ER) model is a pictorial illustration of the relationship between various entities of a domain. In the case of a large amount of data with multiple interrelated entities, the ER diagrams become complex and tough to interpret. For such cases, the need for enhancement in the ER model was observed, and thus, the EER model was designed.