12 Questions
What type of keys are used to link tables in a relational database?
Foreign keys
In REA Modeling, what are the three separate business processes?
Resources, Events, Agents
What is the responsibility of a Database Administrator?
Maintaining the database
What is the first step in creating an Entity-Relationship Diagram (ERD)?
Identify events
Which requirement must be true when designing an REA diagram?
Every attribute must be single-valued
What does a Data Dictionary provide in a database system?
Detailed descriptions of data types for fields
What is the role of Data Integrity in a database?
Ensures data is accurate, complete, and valid
Which cardinality relationship is denoted by a crow foot to crow foot symbol?
(M:N) many to many
What is the purpose of Data Manipulation Language (DML) in a database?
Creates, updates, inserts, and deletes data
What is the function of Data Control Language (DCL) in a database management system?
Grants and removes user access rights
Which language is used to retrieve, sort, order, and display data from a database?
Data Query Language (DQL)
In a Relational Data Model, how is data primarily stored?
In tables
Test your knowledge on relational database keys used to link tables, including primary keys and foreign keys. Explore the three separate business processes involved in REA Modeling: Resources, Events, and Agents. Get ready to enhance your understanding of database design concepts!
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