O 4) A calculated field's value appears in the output of a SELECT statement, but it is not physically stored as a field in the table.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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In Oracle, a calculated field such as item_price * item_quantity differs from a table
field in what way?
1)
A calculated field should be saved in the table after its value has been
computed.
2) A sum cannot be computed for a calculated field.
3) There is no difference. They are just synonyms for the same concept.
4)
A calculated field's value appears in the output of a SELECT statement, but it
is not physically stored as a field in the table.
Transcribed Image Text:In Oracle, a calculated field such as item_price * item_quantity differs from a table field in what way? 1) A calculated field should be saved in the table after its value has been computed. 2) A sum cannot be computed for a calculated field. 3) There is no difference. They are just synonyms for the same concept. 4) A calculated field's value appears in the output of a SELECT statement, but it is not physically stored as a field in the table.
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