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

MCQ 621: The return value of the next method is a/an

1. Integer value
2. String value
3. Comparison value
4. 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

1. The Union Operation
2. The Intersection all Operation
3. The Intersection Operation
4. The Except Operation

MCQ 623: Functions that take a collection of values as input and return a single value, is known to be as

1. Comparative function
2. Aggregate function
3. Derivate function
4. Induced function

MCQ 624: Null values present special problems in

1. Relational operations
2. Comparative operations
3. Set operations
4. All of the Above

MCQ 625: The specification that prohibits the insertion of a null value for the attribute, is called

1. Like Null value
2. Null value
3. Not Null value
4. AS Null value