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Oracle9i program with pl/sql Sample Questions:

1. Examine this code
CREATE OR REPLACE PROCEDURE load bfile (p_flle_loc IN VARCHAR2)
IS
V_file BFILE;
V_filename VARCHAR2 (16);
CURSOR emp_cursor IS
SELECT employee_id
FROM employees
WHERE Job_id = 'IT_PROG'
FOR UPDATE;
BEGIN
FOR emp_record IN emp_cursor LOOP
V_filename:= emp_record.employee_id || '.GIF';
V_file := BFILENAME(p_flle_loc, v_filename);
END LOOP;
END;
/
What does the BFILENAME function do?

A) It checks for the existence of an external BFILE
B) It returns a BFILE locator that is associated with a physical LOB binary file on the server's file system
C) It creates a directory object for use with the external BFILEs
D) It reads data from an external BFILE

2. What part of a database trigger determines the number of times the trigger body executes?

A) Trigger type
B) Trigger body
C) Trigger event
D) Trigger timing

3. Which two does the INSTEAD OF clause in a trigger identify? (Choose two)

A) The event associated with the trigger.
B) The package associated with the trigger.
C) The view associated with the trigger.
D) The table associated with the trigger.
E) The statement level or for each row association to the trigger.

4. Examine this code:
CREATE OR REPLACE FUNCTION gen_email_name
(p_first_name VARCHAR2, p_last_name VARCHAR2, p_id NUMBER)
RETURN VARCHAR2
IS
v_email_name VARCHAR2(19=;
BEGIN
v_email_name := SUBSTR(p_first_name, 1, 1) ||
SUBSTR(p_last_name, 1, 7) ||
'@Oracle.com';
UPDATE employees
SET email = v_email_name
WHERE employee_id = p_id;
RETURN v_email_name;
END;
Which statement removes the function?

A) REMOVE gen_email_name;
B) DELETE gen_email_name;
C) TRUNCATE gen_email_name;
D) DROP FUNCTION gen_email_name;
E) ALTER FUNCTION gen_email_name REMOVE;

5. Examine this code:
CREATE OR REPLACE FUNCTION gen_email_name
(p_first VARCHAR2, p_last VARCHAR2)
RETURN VARCHAR2
IS
v_email_name VARCHAR (19) ;
BEGIN
v_email_bame := SUBSTR(p_first, 1, 1) ||
SUBSTR(p_last, 1, 7) ||
RETURN v_email_name;
END;
/
Which two statements are true? Select two.

A) This function is invalid.
B) This function can be used only on tables where there is a p_first and p_last column.
C) This function can be used against any table.
D) This function will generate a string based on 2 character values passed into the function.
E) This function cannot be used in a SELECT statement.
F) This function can be used only if the two parameters passed in are not null values.

Solutions: