PL/SQL's restriction?

Question

Hi,
This is a syntax question.
How do I define record-typed constants in a package? I need something like this:
Type Color_Type is Record (
red number,
green number,
blue number
COLOR_RED CONSTANT Color_Type := Color_Type(255, 0, 0); -- compile errors here
COLOR_BLUE CONSTANT Color_Type := Color_Type(0, 0, 255);
Is it possible at all to create record constants? Oracle documents just don't say anything about this!!!
Any help is appreciated!

Answer 1

Hi,
This is a syntax question.
How do I define record-typed constants in a package? I need something like this:
Type Color_Type is Record (
red number,
green number,
blue number
COLOR_RED CONSTANT Color_Type := Color_Type(255, 0, 0); -- compile errors here
COLOR_BLUE CONSTANT Color_Type := Color_Type(0, 0, 255);
Is it possible at all to create record constants? Oracle documents just don't say anything about this!!!
Any help is appreciated! #1
Oracle docs say PLENTY about this. Both RECORD and OBJECT types have defined methodologies to be initialized.
http://otn.oracle.com/docs/products/oracle9i/doc_library/release2/appdev.920/a96624/05_colls.htm#1059
object types: http://otn.oracle.com/docs/products/oracle9i/doc_library/release2/appdev.920/a96624/10_objs.htm#330
#2
You are assigning values to the record variable with incorrect syntax. It doesn't make much sense using RECORD types as variable, and I doubt any elegant scheme could be constructed to use them as so.
-- defined in the database (not just a PL/SQL Block)
CREATE OR REPLACE TYPE color_object_type AS OBJECT (
   red   INTEGER,
   green INTEGER,
   blue  INTEGER );
DECLARE
   COLOR_RED  CONSTANT color_object_type := color_object_type(255,0,0);
   COLOR_BLUE CONSTANT color_object_type := color_object_type(0,0,255);
BEGIN
   NULL;
END;
/Hope that helps.
Michael