DATABASE PROGRAMMING

Multiple choices, choose one and only one which is the wrong statement, or the least correct.

1)

1. Associative array does not require calling the constructor function to initialize its variable.

2. Associative array is the only collection type that allows string (such as varchar2) as index.

3. Associative array type can be defined as ... index by integer; .

4. Varrays are always dense, no deletion of internal elements is allowed.

5. The method of limit will return the null when applied to nested table.

2)

1. If an exception occurs in the inner block and it is handled by the exception section in that inner block, then the control passes to the next statement in the outer block.

2. Every system internally defined exception has a code (number).

3. The system predefined exception has a name, thus the system will not raise the exception automatically.

4. Each system internally defined error will be raised by the system automatically if that error occurs in the program during the run time.

5. The exception handler cannot handle exception which occurs in the same exception section.