5 Questions
What is the primary data model used widely for data storage and processing?
Relational data model
What do the rows in a table represent in the relational model?
A collection of related data values
How is a relation represented in the relational model?
As a table of values
What is the purpose of table and column names in the relational model?
To interpret the meaning of values in each row
Name three popular Relational Database management systems.
DB2 and Informix Dynamic Server - IBM, Oracle and RDB - Oracle, SQL Server and Access - Microsoft
Study Notes
Relational Data Model
- The relational data model is the primary data model used widely for data storage and processing.
Relational Model Components
- In the relational model, rows in a table represent individual records or tuples.
- A relation in the relational model is represented as a table, comprising rows (tuples) and columns (attributes).
Table and Column Names
- Table and column names in the relational model serve the purpose of providing a human-readable way to identify and reference data.
Relational Database Management Systems
- Three popular Relational Database Management Systems (RDBMS) are:
- MySQL
- Oracle
- PostgreSQL
Test your understanding of the relational data model with this quiz. Explore the key concepts and properties of the relational model, and assess your knowledge on the storage and processing of data using tables.
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