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Oracle9i program with pl/sql Sample Questions:

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

2. You have created a stored procedure DELETE_TEMP_TABLE that uses dynamic SQL to remove a table in your schema. You have granted the EXECUTE privilege to user A on this procedure.
When user A executes the DELETE_TEMP_TABLE procedure, under whose privileges are the operations performed by default?

A) User A's privileges
B) SYS privileges
C) Your privileges
D) Public privileges
E) User A cannot execute your procedure that has dynamic SQL.

3. What happens during the execute phase with dynamic SQL for INSERT, UPDATE, and DELETE operations?

A) An area of memory is established to process the SQL statement.
B) The rows are selected and ordered.
C) The validity of the SQL statement is established.
D) The area of memory established to process the SQL statement is released.
E) The SQL statement is run and the number of rows processed is returned.

4. You need to disable all triggers on the EMPLOYEES table.Which command accomplishes this?

A) ALTER TABLE employees DISABLE ALL TRIGGERS;
B) None of these commands; you cannot disable multiple triggers on a table in one command.
C) ALTER TRIGGERS ON TABLE employees DISABLE;
D) ALTER employees DISABLE ALL TRIGGERS;

5. You need to implement a virtual private database (vpd). In order to have the vpd functionality, a trigger is required to fire when every user initiates a session in the database.What type of trigger needs to be created?

A) Application trigger
B) DML trigger
C) INSTEAD OF trigger
D) System event trigger

Solutions: