Podcast Beta
Questions and Answers
What is the primary objective of the Conference on Data Systems Languages (CODASYL) in creating the Database Task Group (DBTG)?
What is the term for the collection of records in 1:M relationships in the Network Model?
What is the purpose of the Data Definition Language (DDL) in the Network Model?
What is the term for the conceptual organization of the entire database as viewed by the database administrator?
Signup and view all the answers
What is an advantage of the Network Model?
Signup and view all the answers
What is the relationship between the Owner and Member in the Network Model?
Signup and view all the answers
What is the primary focus of physical/low-level data models?
Signup and view all the answers
What is the purpose of the external schema in the Three-Schema Architecture?
Signup and view all the answers
According to the ANSI/SPARC framework, which level of abstraction describes the structure and constraints for the whole database?
Signup and view all the answers
What is the benefit of the Three-Schema Architecture in terms of program-data independence?
Signup and view all the answers
What is the role of the DBMS in the Three-Schema Architecture?
Signup and view all the answers
What is the main advantage of using implementation/representational/logical data models?
Signup and view all the answers
What is the primary benefit of the declarative nature of SQL language?
Signup and view all the answers
What is the main goal of Big Data management?
Signup and view all the answers
What is a key characteristic of NoSQL databases?
Signup and view all the answers
What is the term for data with a large number of attributes but a low number of actual instances?
Signup and view all the answers
What is the term for the guarantee that updates will eventually propagate through the system?
Signup and view all the answers
What is the main characteristic of a key-value data model?
Signup and view all the answers
What is the primary focus of database vendors in the 'Internet age'?
Signup and view all the answers
What is a common characteristic of successful 'Internet age' databases?
Signup and view all the answers
What type of data model provides concepts that are close to how users perceive data?
Signup and view all the answers
What is the main benefit of Object-Relational Data Models?
Signup and view all the answers