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Oracle 1Z0-147 Exam Syllabus Topics:

Oracle9i program with pl/sql Sample Questions:

1. Examine the trigger heading:
CREATE OR REPLACE TRIGGER salary_check BEFORE UPDATE OF sal, job ON emp FOR EACH ROW
Under which condition does this trigger fire?

A) Only when both values of the SAL and JOB columns in a row are updated together in the EMP table.
B) When any column other than the SAL and JOB columns in a row are updated in the EMP table.
C) When a row is inserted into the EMP table.
D) When the value of the SAL or JOB column in a row is updated in the EMP table.

2. Examine this code:
CREATE OR REPLACE PACKAGE metric_converter
IS
c_height CONSTRAINT NUMBER := 2.54;
c_weight CONSTRAINT NUMBER := .454;
FUNCTION calc_height (p_height_in_inches NUMBER)
RETURN NUMBER;
FUNCTION calc_weight (p_weight_in_pounds NUMBER)
RETURN NUMBER;
END;
/
CREATE OR REPLACE PACKAGE BODY metric_converter
IS
FUNCTION calc_height (p_height_in_inches NUMBER)
RETURN NUMBER
IS
BEGIN
RETURN p_height_in_inches * c_height;
END calc_height;
FUNCTION calc_weight (p_weight_in_pounds NUMBER)
RETURN NUMBER
IS
BEGIN
RETURN p_weight_in_pounds * c_weight
END calc_weight
END metric_converter;
/
CREATE OR REPLACE FUNCTION calc_height (p_height_in_inches NUMBER)
RETURN NUMBER
IS
BEGIN
RETURN p_height_in_inches * metric_converter.c_height;
END calc_height;
/
Which statement is true?

A) If you remove the package specification, then the package body is removed.
B) The stand alone function CALC_HEIGHT cannot be created because its name is used in a packaged function.
C) If you remove the package body, then the package specification is removed.
D) If you remove the package specification, then the package body and the stand alone stored function CALC_HEIGHT are removed.
E) If you remove the stand alone stored function CALC_HEIGHT, then the METRIC_CONVERTER package body and the package specification are removed.
F) If you remove the package body, then the package specification and the stand alone stored function CALC_HEIGHT are removed.

3. When creating stored procedures and functions, which construct allows you to transfer values to and from the calling environment?

A) local variables
B) Boolean variables
C) arguments
D) Substitution variables

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

5. Which statement is valid when removing procedures?

A) Use a drop procedure statement to drop a procedure that is part of a package.
Then recompile the package specification.
B) Use a drop procedure statement to drop a procedure that is part of a package.
Then recompile the package body.
C) Use a drop procedure statement to drop a standalone procedure.
D) For faster removal and re-creation, do not use a drop procedure statement.
Instead, recompile the procedure using the alter procedure statement with the REUSE SETTINGS
clause.

Solutions: