A Subtypes Example : Packages « Function Procedure Packages « Oracle PL/SQL Tutorial

SQL>
SQL> create or replace package pkg_subtype is
  2    subtype fullName is VARCHAR2(61);
  3  end pkg_subtype;
  4  /

Package created.

SQL> declare
  2    v_fullName_sty pkg_subtype.fullName;
  3  begin
  4    v_fullName_sty := 'M C';
  5  end;
  6  /

PL/SQL procedure successfully completed.

SQL>
SQL>

27.10.Packages
	27.10.1.	Packages
	27.10.2.	Private Versus Public Package Objects
	27.10.3.	Package State
	27.10.4.	Recompiling Packages
	27.10.5.	All packages can be recompiled by using the Oracle utility dbms_utility:
	27.10.6.	Creating a Package Specification
	27.10.7.	Creating a Package Body
	27.10.8.	Creating Packages and call its functions
	27.10.9.	Calling Functions and Procedures in a Package
	27.10.10.	A Package Specification and its body
	27.10.11.	Overloading Packaged Subprograms
	27.10.12.	Calls procedure in a package
	27.10.13.	Dropping a Package
	27.10.14.	Calling a Cursor Declared in a Different Package
	27.10.15.	Reference fields and methods in package
	27.10.16.	Controlling access to packages
	27.10.17.	Globals Stored in a Package
	27.10.18.	A Subtypes Example
	27.10.19.	Generate Random number
	27.10.20.	Crosss reference between two packages
	27.10.21.	package RECURSION
	27.10.22.	Using RESTRICT_REFERENCES in a Package
	27.10.23.	PLS-00452: Subprogram 'GETNAME' violates its associated pragma
	27.10.24.	Dynamically create packages