A relational database could be able to cut down on the amount of columns in a table that are required to satisfy certain criteria by using an operation known as select. Which is it: the proper or the erroneous interpretation?

Oracle 12c: SQL
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ISBN:9781305251038
Author:Joan Casteel
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Chapter1: Overview Of Database Concepts
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Problem 5HOA: Access path A database table is composed of records and fields hold data. Data is stored in records....
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A relational database could be able to cut down on the amount of columns in a table that are required to satisfy certain criteria by using an operation known as select.
Which is it: the proper or the erroneous interpretation?

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