Quick Search:
CODE
Oracle PL/SQL Code Library
JOBS
Find Or Post Oracle Jobs
FORUM
Oracle Discussion & Chat
 Oracle PL/SQL: FUNCTIONS: IN OUT parameter Jump to:  
Category: >> Oracle PL/SQL >> FUNCTIONS: IN OUT parameter Bookmark and Share

<< lastnext >>

Snippet Name: FUNCTIONS: IN OUT parameter

Description: When you create a procedure or function, you may define parameters. There are three types of parameters that can be declared:

1. IN - The parameter can be referenced by the procedure or function. The value of the parameter can not be overwritten by the procedure or function.

2. OUT - The parameter can not be referenced by the procedure or function, but the value of the parameter can be overwritten by the procedure or function.

3. IN OUT - The parameter can be referenced by the procedure or function and the value of the parameter can be overwritten by the procedure or function.

Also see:
» FUNCTIONS: Deterministic
» FUNCTIONS: Nested Functions
» FUNCTIONS: IF statement
» FUNCTIONS: date/time
» FUNCTIONS: Sample functions
» FUNCTIONS: drop
» FUNCTIONS: Recompile
» FUNCTIONS: DEBUG mode
» FUNCTIONS: with output parameters
» FUNCTIONS: with parameters
» FUNCTIONS: without parameters
» FUNCTIONS: Create function
» FUNCTIONS: special restrictions
» FUNCTIONS: System Privileges
» IN Function
» Built-In Functions: CASE
» Built-In Functions: DECODE
» SUBST and INSTR together
» INSTR (InString)
» SUBSTR (SubString)
» String Functions: REVERSE
» String Functions: LENGTH
» String Functions: INSTR
» String Functions: CONCAT
» String Functions: CHAR
» String Functions: INITCAP
» String Functions: LOWER
» String Functions: UPPER
» Date Functions: NUMTOYMINTERVAL
» Date Functions: NUMTODSINTERVAL

Comment: (none)

Language:
Highlight Mode: PLSQL
Last Modified: March 13th, 2009

CREATE [OR REPLACE] FUNCTION function_name
    [ (parameter [,parameter]) ]
    RETURN return_datatype
IS | AS
    [declaration_section]
BEGIN
    executable_section
[EXCEPTION
    exception_section]
END [function_name];
 
 
-- example:
 
CREATE OR REPLACE FUNCTION inout_fn (outparm IN OUT VARCHAR2)
RETURN VARCHAR2 IS
 
BEGIN
  outparm := 'Coming out';
  RETURN 'return param';
END inout_fn;
/
 
SET serveroutput ON
 
DECLARE
  retval VARCHAR2(20);
  ioval  VARCHAR2(20) := 'Going in';
BEGIN
  DBMS_OUTPUT.put_line('In: ' || ioval);
  retval := inout_fn(ioval);
  DBMS_OUTPUT.put_line('Out: ' || ioval);
  DBMS_OUTPUT.put_line('Return: ' || retval);
END;
/


Free
Oracle Magazine
Subscriptions
and Oracle White Papers


SQL University.net courses meet the most demanding needs of the business world for advanced education in a cost-effective manner. SQL University.net courses are available immediately for IT professionals and can be taken without disruption of your workplace schedule or processes.

Compared to traditional travel-based training, SQL University.net saves time and valuable corporate resources, allowing companies to do more with less. That's our mission, and that's what we deliver.

Click here to find out more
 
Home      :      Code Library      :      Sponsors      :      Privacy      :      Terms of Use      :      Contact Us 107 users online    © 2009 psoug.org

PSOUG LOGIN
Username: 
Password: 
Forgot your password?