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Oracle 1Z0-147 Exam Syllabus Topics:

Oracle9i program with pl/sql Sample Questions:

1. Which code can you use to ensure that the salary is not increased by more than 10% at a time nor is it ever decreased?

A) CREATE OR REPLACE TRIGGER check_sal
AFTER UPDATE OR sal ON emp
WHEN (new.sal < old.sal OR
-new.sal > old.sal * 1.1)
BEGIN
RAISE_APPLICATION_ERROR ( - 20508, 'Do not decrease
salary not increase by more than 10%');
END;
B) CREATE OR REPLACE TRIGGER check_sal
BEFORE UPDATE OF sal ON emp
FOR EACH ROW
WHEN (new.sal < old.sal OR
new.sal > old.sal * 1.1)
BEGIN
RAISE_APPLICATION_ERROR ( - 20508, 'Do not decrease
salary not increase by more than 10%');
END;
C) CREATE OR REPLACE TRIGGER check_sal
BEFORE UPDATE OF sal ON emp
WHEN (new.sal < old.sal OR
new.sal > old.sal * 1.1)
BEGIN
RAISE_APPLICATION_ERROR ( - 20508, 'Do not decrease
salary not increase by more than 10%');
END;
D) ALTER TABLE emp ADD
CONSTRAINT ck_sal CHECK (sal BETWEEN sal AND sal*1.1);

2. A CALL statement inside the trigger body enables you to call ______.

A) Another database trigger.
B) A package.
C) A stored function.
D) A stored procedure.

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

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

4. Which statements are true? (Choose all that apply)

A) If errors occur during the compilation of a trigger, the trigger is still created.
B) If errors occur during the compilation of a trigger you can go into SQL *Plus and query the USER_ERRORS data dictionary view to see compilation errors.
C) If errors occur during the compilation of a trigger you can go into SQL *Plus and query the USER_TRIGGERS data dictionary view to see the compilation errors.
D) If errors occur during the compilation of a trigger you can use the SHOW ERRORS command within iSQL *Plus to see the compilation errors.

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

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

Solutions: