Oracle 1Z0-147

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Oracle9i program with pl/sql Sample Questions:

1. Examine this code:
CREATE OR REPLACE PRODECURE add_dept (p_dept_name VARCHAR2 DEFAULT 'placeholder', p_location VARCHAR2 DEFAULT 'Boston')
IS BEGIN INSERT INTO departments VALUES (dept_id_seq.NEXTVAL, p_dept_name, p_location); END add_dept; /
Which three are valid calls to the add_dep procedure? (Choose three)

A) add_dept(, 'New York');
B) add_dept;
C) add_dept('Accounting');
D) add_dept(p_location=>'New York');

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

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

4. When using a packaged function in a query, what is true?

A) The packaged function can execute and INSERT, UPDATE, or DELETE statement against the table that is being queried if it is used in a subquery.
B) The packaged function cannot execute an INSERT, UPDATE, or DELETE statement against the table that is being queried.
C) The COMMIT and ROLLBACK commands are allowed in the packaged function.
D) The packaged function can execute an INSERT, UPDATEM or DELETE statement against the table that is being queried if the pragma RESTRICT REFERENCE is used.
E) You can not use packaged functions in a query statement.

5. Given a function CALCTAX:
CREATE OR REPLACE FUNCTION calctax (sal NUMBER) RETURN NUMBER
IS
BEGIN
RETURN (sal * 0.05);
END;
If you want to run the above function from the SQL *Plus prompt, which statement is true?

A) You need to create a SQL *Plus environment variable X and issue the command :X := CALCTAX(1000);.
B) You need to create a SQL *Plus environment variable X and issue the command EXECUTE :X := CALCTAX;
C) You need to create a SQL *Plus environment variable X and issue the command EXECUTE :X := CALCTAX(1000);
D) You need to execute the command EXECUTE FUNCTION calctax;.
E) You need to execute the command CALCTAX(1000);.

Solutions: