A CAR is a VEHICLE.

A CAT is an ANIMAL.

Oracle_2014 --> sudah ditukar dengan my default password

URL: https://iacademy.oracle.com

select *from employees;

Creating a Function: Examples The following statement creates the function get_bal on the sample table oe.orders:

CREATE FUNCTION get_bal(acc_no IN NUMBER) 
   RETURN NUMBER 
   IS acc_bal NUMBER(11,2);
   BEGIN 
      SELECT order_total 
      INTO acc_bal 
      FROM orders 
      WHERE customer_id = acc_no; 
      RETURN(acc_bal); 
    END;
/

The get_bal function returns the balance of a specified account.

CREATE FUNCTION get_bal(acc_no IN NUMBER) 
   RETURN NUMBER 
   IS acc_bal NUMBER(11,2);
   BEGIN 
      SELECT order_total 
      INTO acc_bal 
      FROM orders 
      WHERE cust_id = acc_no; 
      RETURN(acc_bal); 
    END;
/

The get_bal function returns the balance of a specified account.

When you call the function, you must specify the argument acc_no, the number of the account whose balance is sought. The data type of acc_no isNUMBER.

The function returns the account balance. The RETURN clause of the CREATE FUNCTION statement specifies the data type of the return value to beNUMBER.

The function uses a SELECT statement to select the balance column from the row identified by the argument acc_no in the orders table. The function uses a RETURN statement to return this value to the environment in which the function is called.

The function created in the preceding example can be used in a SQL statement. For example:

SELECT get_bal(165) FROM DUAL; 

GET_BAL(165)
------------
        2519

http://docs.oracle.com/cd/E18941_01/tutorials/jdtut_11r2_55/jdtut_11r2_55_2.html

http://docs.oracle.com/cd/E18941_01/tutorials/jdtut_11r2_55/jdtut_11r2_55_3.html

http://quizoracle.blogspot.com/2010/11/final-exam-semester-1.html

http://oacexam.blogspot.com/2012/10/mid-term-exam-semester-1.html

http://oacexam.blogspot.com/2012/10/mid-term-exam-semester-1.html

http://www.academia.edu/8918093/Mid_Term_Exam_Semester_1.html

http://www.techonthenet.com/oracle/joins.php