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Oracle9i program with pl/sql Sample Questions:

1. You want to create procedures, functions and packages Which privilege do you need?

A) CREATE PACKAGE system privilege
B) CREATE ANY CODE object privilege
C) EXECUTE CODE object privilege
D) CREATE PROCEDURE system privilege
E) CREATE FUNCTION, CREATE PROCEDURE, CREATE PACKAGE system privileges

2. Examine this package:
CREATE OR REPLACE PACKAGE BB_PACK IS V_MAX_TEAM_SALARY NUMBER(12,2); PROCEDURE ADD_PLAYER(V_ID IN NUMBER, V_LAST_NAME VARCHAR2, V_SALARY NUMBER); END BB_PACK; / CREATE OR REPLACE PACKAGE BODY BB_PACK IS V_PLAYER_AVG NUMBER(4,3); PROCEDURE UPD_PLAYER_STAT V_ID IN NUMBER, V_AB IN NUMBER DEFAULT 4, V_HITS IN NUMBER) IS BEGIN UPDATE PLAYER_BAT_STAT SET AT_BATS = AT_BATS + V_AB, HITS = HITS + V_HITS WHERE PLAYER_ID = V_ID; COMMIT; VALIDATE_PLAYER_STAT(V_ID);
END UPD_PLAYER_STAT;
PROCEDURE ADD_PLAYER
(V_ID IN NUMBER, V_LAST_NAME VARCHAR2, V_SALARY NUMBER)
IS
BEGIN
INSERT INTO PLAYER(ID,LAST_NAME,SALARY)
VALUES (V_ID, V_LAST_NAME, V_SALARY);
UPD_PLAYER_STAT(V_ID,0,0);
END ADD_PLAYER;
END BB_PACK
/
Which statement will successfully assign .333 to the V_PLAYER_AVG variable from a procedure
outside the package?

A) BB_PACK.V_PLAYER_AVG := .333;
B) This variable cannot be assigned a value from outside of the package.
C) V_PLAYER_AVG := .333;
D) BB_PACK.UPD_PLAYER_STAT.V_PLAYER_AVG := .333;

3. Which two statements about functions are true? (Choose two.)

A) A stored function that is called from a SOL statement can return a value of any PL/SOL variable data type
B) A stored function increases efficiency of queries by performing functions on the server rather than in the application
C) A function must have a return statement in its body to execute successfully
D) Client-side functions can be used in SOL statements
E) From SOL*Plus, a function can be executed by giving the command EXECUTE functionname;

4. Which statement is true?

A) Stored functions can be called from the SELECT and WHERE clauses only.
B) Stored functions do not permit calculations that involve database links in a distributed environment.
C) Stored functions cannot manipulate new types of data, such as longitude and latitude.
D) Stored functions can increase the efficiency of queries by performing functions in the query rather than in the application.

5. Examine this code CREATE OR REPLACE FUNCTION change_dept (p_old_id NUMBER, p_deptname VARCHAR2) RETURN NUMBER IS V_new_id NUMBER; BEGIN SELECT departments_seq.nextval INTO v_new_id FROM dual; UPDATE departments SET departmenet_id = v_new_id, Department_name = p_deptname WHERE department_id = p_old_id; Return v_new_id; END; /
There are no foreign key integrity constraints on the EMPLOYEES and DEPARTMENTS tables. Which statement performs a successful update to the EMPLOYEES table?

A) UPDATE departments
SET department_id = change_dept(10, 'Finance')
Where department_id = 10;
B) UPDATE employees
SET department_id = change_dept(10, 'Finance')
Where department_id = DEPARTMENTS:CURRVAL;
C) UPDATE employees
SET department_id = change_dept(10, 'Finance')
Where department_id = 10;
D) UPDATE departments
change_dept(270, 'Outsource')
Where department_name = 'payroll';

Solutions: