Question

A column whose value is always unique in a table is called an individual.
true or false

Answer 1

false.

Step-by-step explanation:

A column whose values are always unique in a table is typically referred to as a primary key, not an individual. A primary key uniquely identifies each record in a table. An "individual" is a term used to describe a single item or person and is not commonly used in the context of database tables and columns.

Answer 2

A column with always unique values is called a primary key or unique key in a table, not an 'individual.' This is a key database concept used to maintain data integrity.

Step-by-step explanation:

The statement is false. A column whose value is always unique in a table is known as a primary key or unique key, not an 'individual.' Each value in this column is unique to a specific row and is used to uniquely identify that row within the table. Columns like these are crucial in relational databases for maintaining data integrity and enabling efficient querying.

In many cases, column labels are formatted in a specific way. For instance, a format of 'Quantity/units' indicates that the units should be divided into the quantity to get the pure number in the table or on the axis of a graph. However, this formatting has more to do with data presentation and units of measurement rather than unique identification within a database structure.