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Oracle9i program with pl/sql Sample Questions:

1. What can you do with the DBMS_LOB package?

A) Use the DBMS_LOB.FILEEXISTS function to find the location of a BFILE.
B) Use the DBMS_LOB.FILECLOSE procedure to close the file being accessed.
C) Use the DBMS_LOBFILENAME function to locate an external BFILE.
D) Use the DBMS_LOB.WRITE procedure to write data to a BFILE.

2. Examine this code:
CREATE OR REPLACE TRIGGER secure_emp BEFORE LOGON ON employees BEGIN IF (TO_CHAR(SYSDATE, 'DY') IN ('SAT', 'SUN')) OR (TO_CHAR(SYSDATE, 'HH24:MI') NOT BETWEEN '08:00' AND '18:00') THEN RAISE_APPLICATION_ERROR (-20500, 'You may insert into the EMPLOYEES table only during business hours.'); END IF; END; / What type of trigger is it?

A) System event trigger
B) DML trigger
C) Application trigger
D) This is an invalid trigger.
E) INSTEAD OF trigger

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

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

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

5. A dependent procedure or function directly or indirectly references one or more of which four objects? (Choose four)

A) procedure
B) view
C) sequence
D) anonymous block
E) privilege
F) packaged procedure or function

Solutions: