Database Systems Practice Test 309

Measures of Query Cost Quiz Questions and Answers PDF - 309

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The Quiz: Instead of minimizing the response time, optimizers can minimize a query plan's; "Measures of Query Cost" App Download (Free) with answers resource consumption, disk usage, pipeline size and indices length for online SQL language certification. Solve query processing questions and answers, Amazon eBook to download free sample for top online computer science programs.

Measures of Query Cost Questions and Answers PDF Download: Quiz 309

MCQ 1541: Instead of minimizing the response time, optimizers can minimize a query plan's

A) Disk usage

B) Resource consumption

C) Pipeline size

D) Indices length

MCQ 1542: As an example to find the set of all courses taught in the Fall 2009 as well as in Spring 2010, the operation to be used is

A) The Union Operation

B) The Union all Operation

C) The Intersect Operation

D) The Except Operation

MCQ 1543: The output of a request such as:
insert into student
select *
from student;
would be

A) Finite number of tuples

B) Infinite number of tuples

C) Finite number of attributes

D) Infinite number of relations

MCQ 1544: The alternative to phrase "greater than at least one", the > some comparison is used in the

A) Select clause

B) From clause

C) Where clause

D) Group by clause

MCQ 1545: The operation that takes both the left and right outer join operations, is known as

A) Whole outer join

B) Full outer join

C) Natural outer join

D) Combination outer join

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