Select the best answer. Which listed attribute is an invalid attribute of an Explicit cursor.

  1. %NOTFOUND

  2. %FOUND

  3. %ROWCOUNT

  4. %ISOPEN

  5. None of the above. All of these are valid.


Correct Option: E
Explanation:

To answer this question, the user needs to have knowledge of explicit cursors in SQL.

The explicit cursor is a SELECT statement that gets declared in the declaration section of PL/SQL block, and it is used to retrieve more than one row from the table.

Now, let's examine each option to see which attribute is invalid for an explicit cursor:

A. %NOTFOUND: This attribute is used to check whether the cursor returns no rows. It is a valid attribute of an explicit cursor.

B. %FOUND: This attribute is used to check whether the cursor returns rows. It is a valid attribute of an explicit cursor.

C. %ROWCOUNT: This attribute is used to return the number of rows affected by the most recent DML statement. It is a valid attribute of an explicit cursor.

D. %ISOPEN: This attribute is used to check whether the cursor is open or not. It is a valid attribute of an explicit cursor.

E. None of the above. All of these are valid: This option is incorrect because it is asking for an invalid attribute. All of the attributes listed in the question (A, B, C, and D) are valid attributes of an explicit cursor.

Therefore, the correct answer is:

The Answer is: E

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