Relational Model Quiz

The relational model is a database model that represents data in the form of tables, which are composed of rows and columns. It is based on the concept of a relation, which is a mathematical term for a set of tuples. Each table in the relational model represents a relation, and each row in the table represents a tuple or record. The columns of the table represent attributes or fields, which define the properties or characteristics of the tuples.

The properties of the relational model include: 1) Data is represented in the form of tables, which allows for a structured and organized representation. 2) Tables have a well-defined schema, which specifies the attributes and their data types. 3) Each row in a table is unique, and each column in a row contains a single value. 4) Relationships between tables are established through keys, such as primary keys and foreign keys. 5) The relational model supports operations like select, insert, update, and delete, which allow for data manipulation and retrieval.