In relational database terminology, what is a field?

In relational database terminology, what is a field?

• A. A column attribute.
• B. A row.
• C. The entire table.
• D. A database.

Answer: (A)

In a relational table, a field is the column that stores data for a single attribute across all records. It defines the type of data you’re recording for that attribute, such as a LastName or Department, and every row in the table has a value for that field. A row is one complete record, the entire table is a relation, and a database is the collection of tables. So the field best matches the idea of a column attribute because it organizes the data by attribute across all rows. (Note: the value at the intersection of a specific row and column is a single data item, but the field itself is the column that holds that attribute’s data.)

In a relational table, a field is the column that stores data for a single attribute across all records. It defines the type of data you’re recording for that attribute, such as a LastName or Department, and every row in the table has a value for that field. A row is one complete record, the entire table is a relation, and a database is the collection of tables. So the field best matches the idea of a column attribute because it organizes the data by attribute across all rows. (Note: the value at the intersection of a specific row and column is a single data item, but the field itself is the column that holds that attribute’s data.)