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Oracle9i program with pl/sql Sample Questions:

1. Which two statements about packages are true? (Choose two)

A) The specification and body of the package are stored together in the database.
B) The package specification is required, but the package body is optional.
C) The specification and body of the package are stored separately in the database.
D) The package specification is optional, but the package body is required.
E) Both the specification and body are required components of a package.

2. Procedure PROCESS_EMP references the table EMP.
Procedure UPDATE_EMP updates rows if table EMP through procedure PROCESS_EMP.
There is a remote procedure QUERY_EMP that queries the EMP table through the local
procedure PROCESS_EMP.
The dependency mode is set to TIMESTAMP in this session.
Which two statements are true? (Choose two)

A) If internal logic of procedure PROCESS_EMP is modified and successfully recompiles, UPDATE_EMP gets invalidated and will recompile when invoked for the first time.
B) If the signature of procedure PROCESS_EMP is modified and successfully recompiles, the EMP table is invalidated.
C) If internal logic of procedure PROCESS_EMP is modified and successfully recompiles, QUERY_EMP gets invalidated and will recompile when invoked for the second time.
D) If the signature of procedure PROCESS_EMP is modified and successfully recompiles, UPDATE_EMP gets invalidated and will recompile when invoked for the first time.
E) If internal logic of procedure PROCESS_EMP is modified and successfully recompiles, QUERY_EMP gets invalidated and will recompile when invoked for the first time.

3. Examine this code:
CREATE OR REPLACE FUNCTION calc_sal(p_salary NUMBER)
RETURN NUMBER
IS
v_raise NUMBER(4,2) DEFAULT 1.08;
BEGIN
RETURN v_raise * p_salary;
END calc_sal;
/
Which statement accurately call the stored function CALC_SAL? (Choose two)

A) SELECT salary, calc_sal(salary)
FROM employees
WHERE department_id = 60;
B) DELETE FROM employees(calc_sal(salary))
WHERE calc_sal(salary) > 1000;
C) SELECT last_name, salary, calc_sal(salary)
FROM employees ORDER BY
calc_sal(salary);
D) INSERT calc_sal(salary) INTO employees
WHERE department_id = 60;
E) UPDATE employees (calc_sal(salary))
SET salary = salary * calc_sal(salary);

4. 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

5. You need to implement a virtual private database (vpd). In order to have the vpd functionality, a trigger is required to fire when every user initiates a session in the database.What type of trigger needs to be created?

A) DML trigger
B) Application trigger
C) INSTEAD OF trigger
D) System event trigger

Solutions: