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Oracle9i program with pl/sql Sample Questions:

1. You have a table with the following definition:
CREATE TABLE long_tab
(id NUMBER);
long_col LONG)
You need to convert the LONG_COL column from a LONG data type to a LOB data type. Which
statement accomplish this task?

A) EXECUTE dbms_manage.lob.migrate(long_tab, long_col, clob)
B) ALTER TABLE long_tab MODIFY (LONG_COL CLOB);
C) EXECUTE utl_lob.migrate(long_tab, long_col, clob)
D) EXECUTE dbms_lob.migrate(long_tab, long_col, clob)
E) EXECUTE utl_manage_lob.migrate(long_tab, long_col, clob)

2. 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_home := 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;
You run this SELECT statement:
SELECT first_name, last_name
gen_email_name(first_name, last_name, 108) EMAIL
FROM employees;
What occurs?

A) The statement fails because functions called from SQL expressions cannot perform DML.
B) The SQL statement executes successfully and control is passed to the calling environment.
C) Employee 108 has his email name updated based on the return result of the function.
D) The SQL statement executes successfully, because UPDATE and DELETE statements are ignoring in stored functions called from SQL expressions.
E) The statement fails because the functions does not contain code to end the transaction.

3. Examine this package
CREATE OR REPLACE PACKAGE discounts
IS
g_id NUMBER := 7839;
discount _rate NUMBER := 0.00;
PROCEDURE display_price (p_price NUMBER);
END discounts;
/
CREATE OR REPLACE PACKAGE BODY discounts
IS
PROCEDURE display_price (p_price NUMBERI)
IS
BEGIN
DBMS_OUTPUT.PUT LINE ( 'Discounted '||
TO_CHAR(p_price*NVL(dlscount_rate, 1)));
END display_price;
BEGIN
Discount_rate = 0.10;
END discounts;
/
The SQL*Plus SERVEROUTPUT setting is turned on in your session. You execute the procedure
DISPLAY_PRICE from SQL*Plus with the command EXECUTE discounts. display_price (100);
What is the result?

A) Discounted 10
B) Discounted 100
C) Discounted NULL
D) Discounted 0.00
E) Discounted 0.10

4. Examine this code:
CREATE OR REPLACE PROCEDURE add_dept
( p_name departments.department_name%TYPE DEFAULT 'unknown',
p_loc departments.location_id%TYPE DEFAULT 1700)
IS
BEGIN
INSERT INTO departments(department_id, department_name,
loclation_id)
VALUES(dept_seq.NEXTVAL,p_name, p_loc);
END add_dept;
/
You created the add_dept procedure above, and you now invoke the procedure in SQL *Plus.
Which four are valid invocations? (Choose four)

A) EXECUTE add_dept('2500', p_loc =>2500)
B) EXECUTE add_dept(p_name=>'Education', 2500)
C) EXECUTE add_dept('Education', 2500)
D) EXECUTE add_dept(p_loc=>2500, p_name=>'Education')
E) EXECUTE add_dept(p_loc=>2500)

5. All users currently have the INSERT privilege on the PLAYER table. You only want your users to insert into this table using the ADD_PLAYTER procedure. Which two actions must you take? (Choose two)

A) GRANT INSERT ON PLAYER TO PUBLIC;
B) REVOKE INSERT ON PLAYER FROM PUBLIC;
C) GRANT EXECUTE ON ADD_PLAYER TO PUBLIC;
D) GRANT EXECUTE,INSERT ON ADD_PLAYER TO PUBLIC;
E) GRANT SELECT ON ADD_PLAYER TO PUBLIC;

Solutions: