A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n):-A-primary key.B-foreign key.C-composite key.D-surrogate key.-D-surrogate key.

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D surrogate key. Surrogate keys are keys that have no &acirc;&euro;&oelig;business&acirc;&euro; meaning and are solely used to identify a record in the table. Such keys are either database generated (example: Identity in SQL Server, Sequence in Oracle, Sequence/Identity in DB2 UDB etc. ) or system generated values (like generated via a table in the schema).

Data Models into Database Designs

A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n):

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Data Models into Database Designs

A unique, DBMS-supplied identifier used as the primary key of a relation is called a(n):

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For help Students Orientation Mcqs Questions

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