Java Database Connectivity (JDBC) Quiz with Answers PDF Download – Test 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