What keywords describe the capabilities in the following case?
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A SELECT statement can be used to perform these three functions: - Choose rows from a table. - Choose columns from a table. - Bring together data that is stored in different tables by creating a link between them.
A. Difference, projection, join B. Selection, projection, join C. Selection, intersection, join D. Intersection, projection, join E. Difference, projection, product
Different keywords can be taken out of text and portrayed as a summary. It allows readers to understand the context easily without having to go through all the reading. For instance, when you chose rows in a table, or chose columns or attempt to bring together the different tables in order to create a link, it is best explained by some small keywords.
These words include selection, then projection and then join. It is important that you understand the concept and are able to gasp the integrity of the problem at hand. You can easily understand the whole thing by simply looking up the keywords.