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Oracle9i program with pl/sql Sample Questions:

1. Examine this code:
CREATE OR REPLACE PACKAGE comm_package
IS
g_comm NUMBER := 10;
PROCEDURE reset_comm(p_comm IN NUMBER);
END comm_package;
/
User Jones executes the following code at 9:01am: EXECUTE comm_package.g_comm := 15
User Smith executes the following code at 9:05am: EXECUTE comm_paclage.g_comm := 20
Which statement is true?

A) g_comm has a value of 15 at 9:06am for Smith.
B) g_comm has a value of 20 at 9:06am for both Jones and Smith.
C) g_comm has a value of 15 at 9:03 am for both Jones and Smith.
D) g_comm has a value of 15 at 9:06am for Jones.
E) g_comm has a value of 10 at 9:06am for both Jones and Smith.
F) g_comm has a value of 10 at 9:03am for both Jones and Smith

2. Which three statements are true regarding database triggers? (Choose three)

A) A database trigger executes implicitly whenever a particular event takes place.
B) With a schema, triggers fire for each event for all users; with a database, triggers fire for each event for that specific user.
C) A database trigger fires whenever a data event (such as DML) or system event (such as logon, shutdown) occurs on a schema or database.
D) A database trigger needs to be executed explicitly whenever a particular event takes place.
E) A database trigger is a PL/SQL block, C, or Java procedure associated with a table, view, schema, or the database.

3. Which two statements about object dependencies are accurate? (Choose two.)

A) When referencing a package procedure or function from a stand-alone procedure or function, if the package body changes and the package specification does not change, the stand-alone procedure referencing a package construct becomes invalid
B) When referencing a package procedure or function from a stand-alone procedure or function, if the package specification changes, the package body remains valid but the stand-alone procedure becomes invalid
C) When referencing a package procedure or function from a stand-alone procedure or function, if the package body changes and the package specification does not change, the stand-alone procedure referencing a package construct remains valid.
D) When referencing a package procedure or function from a stand-alone procedure or function, If the package specification changes, the stand-alone procedure referencing a package construct as well as the package body become invalid

4. Examine this procedure:
CREATE OR REPLACE PROCEDURE DELETE_PLAYER (V_ID IN NUMBER) IS BEGIN
DELETE FROM PLAYER
WHERE ID = V_ID;
EXCEPTION
WHEN STATS_EXITS_EXCEPTION
THEN DBMS_OUTPUT.PUT_LINE
('Cannot delete this player, child records exist in PLAYER_BAT_STAT table');
END;
What prevents this procedure from being created successfully?

A) The STATS_EXIST_EXCEPTION has not been declared as a number.
B) Only predefined exceptions are allowed in the EXCEPTION section.
C) The STATS_EXIST_EXCEPTION has not been declared as an exception.
D) A comma has been left after the STATS_EXIST_EXCEPTION exception.

5. 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 reads data from an external BFILE
B) It checks for the existence of an external BFILE
C) It returns a BFILE locator that is associated with a physical LOB binary file on the server's file system
D) It creates a directory object for use with the external BFILEs

Solutions: