What Type of Key Is Also Called a Logical Key

question 51

Multiple Choice

What type of key is also called a logical key?

• A) surrogate
• B) intelligent
• C) secondary
• D) synthetic

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Definitions:

Self Join

A join in SQL where a table is joined to itself to compare rows within the same table.

Parent Table

A table in a database that has one or more related child tables through a foreign key relationship, establishing a hierarchy.

Child Table

A table in a database that has a foreign key linking to the primary key of another table, known as the parent table.

Table Structure

The organization of data in rows and columns in a relational database or spreadsheet.