Database Systems Practice Test 127

Integrity Constraints Quiz PDF: Questions and Answers - 127

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Integrity Constraints Questions and Answers PDF Download: Quiz 127

MCQ 631: Foreign keys can be specified as part of the SQL

A) Select table statement

B) Define table statement

C) Create table statement

D) Modify table statement

MCQ 632: Schedules should preferably be

A) Cascading

B) Cascadeless

C) Dependent

D) Non-modifying

MCQ 633: Trigger on a table that enables specific actions for exactly one timing point is called

A) Simple trigger

B) Compound trigger

C) Context trigger

D) Dedicated trigger

MCQ 634: Wherever a view relation appears in a query, it is replaced by the stored

A) View expression

B) View expression

C) Query expression

D) Query definition

MCQ 635: Variables of the host language can be used within embedded SQL statements, but they must be preceded by a

A) ?

B) #

C) %

D) :

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