Free online courseDatabase Management Systems

Conteúdo do Curso

• Video class: Introduction to Database Management Systems

  0h11m

• Exercise: What is a key advantage of using a Database Management System (DBMS) over a traditional file system?

• Video class: DBMS Characteristics

  0h12m

• Exercise: Which of the following is a characteristic that distinguishes a Database Management System (DBMS) from traditional file systems?

• Video class: Database Users

  0h10m

• Exercise: Which of the following database users are primarily responsible for managing resources and authorizing access to the database?

• Video class: Advantages

  0h15m

• Exercise: What is one of the main advantages of a Database Management System (DBMS) over traditional file systems?

• Video class: History of Database Applications

  0h08m

• Exercise: Which of the following statements about the evolution of database management systems is true?

• Video class: Fundamentals of Database Systems

  0h06m

• Exercise: Which category of data model includes concepts like entities, attributes, and relationships to present data in a way that is closer to how users perceive it?

• Video class: Three-Schema Architecture

  0h06m

• Exercise: What is the role of the external level in the three schema architecture of a database system?

• Video class: DBMS Languages, Interfaces, and Classification

  0h12m

• Exercise: What is the primary function of the Data Definition Language (DDL) in database management systems?

• Video class: Database System Environment

  0h07m

• Exercise: Which module in a Database Management System (DBMS) is responsible for transforming schemas defined by the Data Definition Language (DDL) into a format stored in the catalog?

• Video class: DBMS Architecture

  0h08m

• Exercise: What is a key difference between the two-tier and three-tier client-server architectures in a DBMS?

• Video class: Basic Concepts of Entity-Relationship Model

  0h08m

• Exercise: Which of the following is an example of a composite attribute in an entity-relationship model?

• Video class: Database Design Process

  0h11m

• Exercise: In the database design process, what is the main purpose of creating a conceptual schema?

• Video class: Concept of Relationships in ER Diagram

  0h15m

• Exercise: What type of relationship exists when there is an association among three entities?

• Video class: Exercises based on ER Model Concepts (Part 1)

  0h14m

• Exercise: In an Entity-Relationship (ER) diagram for a bank database, which of the following correctly describes the identifying relationship and participation constraints between a 'Bank' entity type and its related 'Bank Branch' weak entity type?

• Video class: Exercises based on ER Model Concepts (Part 2)

  0h11m

• Exercise: In an Entity-Relationship (ER) diagram, which of the following min-max constraints is correct given that an instructor can teach between two to four courses, and each course may use up to five different textbooks?

• Video class: Introduction to Relational Data Model

  0h06m

• Exercise: In the context of the relational database model, what does cardinality refer to?

• Video class: Characteristics of Relations

  0h07m

• Exercise: What is a characteristic of a relational database with regard to the ordering of tuples?

• Video class: Relational Model Constraints

  0h12m

• Exercise: Which statement accurately describes a characteristic of a super key in the relational database model?

• Video class: Update Operations/Dealing with Constraint Violations

  0h09m

• Exercise: In a relational database system, which update operation is most likely to cause a violation of the referential integrity constraint?

• Video class: Exercises based on Relational Model (Part 1)

  0h12m

• Exercise: Which of the following statements about the relational model of databases is correct?