Select the incorrect statement(s).Row is called a ‘Tuple’.Table is called a ‘Attribute’.Column header is called an ‘Attribute’.Table is called a ‘Tuple’.
Question
Select the incorrect statement(s).
- Row is called a ‘Tuple’.
- Table is called a ‘Attribute’.
- Column header is called an ‘Attribute’.
- Table is called a ‘Tuple’.
Solution
To evaluate the statements given in the question and identify which ones are incorrect, let’s analyze them one by one:
-
Row is called a 'Tuple':
- This statement is correct. In relational database terminology, a row in a table is indeed referred to as a "tuple".
-
Table is called an 'Attribute':
- This statement is incorrect. In database terminology, a table is not called an "attribute"; a table is simply referred to as a "table".
-
Column header is called an 'Attribute':
- This statement is correct. In the context of a database table, the column headers represent attributes of the entities described by the table.
-
Table is called a 'Tuple':
- This statement is incorrect. A table is not referred to as a "tuple"; this term specifically refers to rows within the table.
Summary of Incorrect Statements
- The incorrect statements from the options are:
- "Table is called an 'Attribute'."
- "Table is called a 'Tuple'."
Thus, the primary misconceptions here involve terminology related to database structures, where rows (tuples) and columns (attributes) are distinct from tables.
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