Define a Sub Function in Oracle

Q

How To Define a Sub Function in Oracle?

✍: FYIcenter.com

A

A sub function is a function defined and used inside another procedure or function. You need to define a sub function in the declaration part of the enclosing procedure or function. Sub function definition starts with the FUNCTION key word. Here is a sample script showing you how to define and use a sub function:

SQL> CREATE OR REPLACE PROCEDURE SUM_TEST AS      
  2    FUNCTION MY_SUM(X NUMBER, Y NUMBER)        
  3      RETURN NUMBER AS          
  4    BEGIN        
  5      RETURN X + Y;             
  6    END;         
  7  BEGIN          
  8    DBMS_OUTPUT.PUT_LINE('3 + 5 = ' || 
  9      TO_CHAR(MY_SUM(3,5))); 
 10    DBMS_OUTPUT.PUT_LINE('5 + 3 = ' ||
 11      TO_CHAR(MY_SUM(5,3))); 
 12  END;           
 13  /
 
SQL> EXECUTE SUM_TEST;
3 + 5 = 8
5 + 3 = 8

⇒ Call Procedure or Function Recursively in Oracle

⇐ Call a Sub Procedure in Oracle

⇑ Creating Oracle PL/SQL Procedures and Functions

⇑⇑ Oracle Database Tutorials

2018-03-18, 3715🔥, 0💬