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Oracle9i program with pl/sql Sample Questions:

1. When creating stored procedures and functions, which construct allows you to transfer values to and from the calling environment?

A) Boolean variables
B) arguments
C) Substitution variables
D) local variables

2. Which two describe a stored procedure? (Choose two)

A) A stored procedure is a type of PL/SQL subprogram that performs an action.
B) A stored procedure is a named PL/SQL block that can accept parameters.
C) A stored procedure is typically written in SQL.
D) A stored procedure has three parts: the specification, the body, and the exception handler part.
E) The executable section of a stored procedure contains statements that assigns values, control execution, and return values to the calling environment.

3. The OLD and NEW qualifiers can be used in which type of trigger?

A) Row level DML trigger
B) Row level system trigger
C) Statement level DML trigger
D) Row level application trigger
E) Statement level application trigger
F) Statement level system trigger

4. When creating a function, in which section will you typically find the RETURN keyword?

A) EXECUTABLE and HEADER
B) DECLARATIVE
C) HEADER only
D) DECLARATIVE,EXECUTABLE and EXCEPTION HANDLING

5. Examine this code:
CREATE OR REPLACE PACKAGE bonus
IS
g_max_bonus NUMBER := .99;
FUNCTION calc_bonus (p_emp_id NUMBER)
RETURN NUMBER;
FUNCTION calc_salary (p_emp_id NUMBER)
RETURN NUMBER;
END;
/
CREATE OR REPLACE PACKAGE BODY bonus
IS v_salary employees.salary%TYPE; v_bonus employees.commission_pct%TYPE; FUNCTION calc_bonus (p_emp_id NUMBER) RETURN NUMBER IS BEGIN SELECT salary, commission_pct INTO v_salary, v_bonus FROM employees WHERE employee_id = p_emp_id; RETURN v_bonus * v_salary; END calc_bonus FUNCTION calc_salary (p_emp_id NUMBER) RETURN NUMBER IS BEGIN SELECT salary, commission_pct INTO v_salary, v_bonus FROM employees WHERE employees RETURN v_bonus * v_salary + v_salary; END cacl_salary; END bonus; / Which statement is true?

A) You can call the BONUS.CALC_SALARY packaged function from an INSERT command against the EMPLOYEES table.
B) You can call the BONUS.CALC_SALARY packaged function form a DELETE command against the EMPLOYEES table.
C) You can call the BONUS.CALC_SALARY packaged function from an UPDATE command against the EMPLOYEES table.
D) You can call the BONUS.CALC_SALARY packaged function from a SELECT command against the EMPLOYEES table.

Solutions: