DBMS- bundled Exams 2023 with 100% correct answers

descriptive attributes attributes describing an entity relationship cardinality describes the number of entities in one entity set that can be associated with the number of entities in another set domain a range of values that can be assigned to an attribute (varchar, number, 10, 20...

1NF Defined primary key, no multi-valued attributes 2NF 1NF + no partial dependencies 3NF 2NF + no transitive dependencies DBMS (Database Management System) a product used for the storage and organization of data that typically has defined formats and structures What ...

RDBMS A database management system that manages data as a collection of tables in which all relationships are represented by common values in related tables Schema The structure that contains descriptions of objects created by a user (base tables, views, constraints) Data Definition ...

What are some examples of Database Applications? Retail stores, Credit card management, Travel, Library, Insurance, Video, Web, UTPA Assist What kind of approach does a file based system use? A decentralized approach. How do programs manage data in a file-based system? Each program ...

SQL is a domain-specific programming language designed for managing and communicating with data held in a relational database management system SQL is used for: -creating databases -adding, modifying and deleting database structures -inserting, deleting and modifying records in databases ...

Commercial DBMS products such as Oracle and MS SQL Server uses the Relational model. Relational Conceptual (high level) provide concepts that are close to the way user perceives model Entity based, object based Physical (low level) describes details of how data is stored in the com...

Data raw facts (RED, 192, V2.0) Information Meaning (south facing traffic light has turned red) Knowledge Context(The traffic light I am driving towards turned red) Wisdom Applied knowledge (I better stop the car) Role of the DBMS - Intermediary between the user and ...

what is data raw facts what is information data processed to reveal meaning what does information require to reveal meaning context good decision making requires information that is accurate, relevant, timely, complete, and cost effective new knowledge can be derived ...

Information System Provides for data collection and storage retrieval Consists of: People, hardware, software, databases, app programs and procedures Systems Analysis Process that establishes NEED for and EXTENT of information system Systems Development Process of CREATING INFORMAT...

Database Structure that can store information about different categories of information and relationship between those categories of information. Database Management System (DBMS) A software system designed to store, manage and facilitate access to databases. Entity A person, place,...