In relational terms, a tuple refers to which element of a relation (table)?

Introduction / Context:
Terminology bridges theory and practice. The term tuple is standard in relational theory, while many tools say row or record.

Given Data / Assumptions:

• A relation has attributes (columns) and tuples (rows).
• Each tuple contains values for every attribute of the relation.

Concept / Approach:
A tuple is a single record in the relation, represented as a row with one value per attribute.

Step-by-Step Solution:

Verification / Alternative check:
SQL statements like insert into table values (...) operate on tuples, i.e., rows.

Why Other Options Are Wrong:

• Column describes an attribute, not a tuple.
• Two dimensional table refers to the entire relation, not one tuple.
• Key is a set of attributes used to identify tuples, not the tuple itself.

Common Pitfalls:
Using record and field inconsistently; remember tuple equals row and attribute equals column.

Final Answer:
row of a table.