Database Systems Entrance Exam: Mock Test 125

Java Database Connectivity (JDBC) Quiz Questions and Answers PDF Download - 125

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Java Database Connectivity (JDBC) Questions and Answers PDF Download: MCQ 125

MCQ: 621

The return value of the next method is a/an

Integer value
String value
Comparison value
Boolean value

MCQ: 622

As an example to find the set of all courses taught in the Fall 2009 but not in Spring 2010, the operation to be used is

The Union Operation
The Intersection all Operation
The Intersection Operation
The Except Operation

MCQ: 623

Functions that take a collection of values as input and return a single value, is known to be as

Comparative function
Aggregate function
Derivate function
Induced function

MCQ: 624

Null values present special problems in

Relational operations
Comparative operations
Set operations
All of the Above

MCQ: 625

The specification that prohibits the insertion of a null value for the attribute, is called

Like Null value
Null value
Not Null value
AS Null value

Java Database Connectivity (JDBC) Textbook Tests: Database Systems App & eBook Quizzes

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