Globals Stored in a Package : Packages « Function Procedure Packages « Oracle PL/SQL Tutorial

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Oracle PL/SQL Tutorial
1.Introduction
2.Query Select
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4.Insert Update Delete
5.Sequences
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10.SQL Data Types
11.Character String Functions
12.Aggregate Functions
13.Date Timestamp Functions
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19.Statistical Functions
20.Linear Regression Functions
21.PL SQL Data Types
22.PL SQL Statements
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24.PL SQL Programming
25.Cursor
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27.Function Procedure Packages
28.Trigger
29.SQL PLUS Session Environment
30.System Tables Data Dictionary
31.System Packages
32.Object Oriented
33.XML
34.Large Objects
35.Transaction
36.User Privilege
Oracle PL/SQL Tutorial » Function Procedure Packages » Packages 
27.10.17.Globals Stored in a Package
SQL>
SQL>
SQL> create or replace package pkg_global is
  2     function f_countryUSA_cd return VARCHAR2;
  3  end;
  4  /

Package created.

SQL> create or replace package body pkg_global is
  2     gv_countryUSA_cd VARCHAR2(3:= 'USA';
  3
  4     function f_countryUSA_cd return VARCHAR2 is
  5     begin
  6        return gv_countryUSA_cd;
  7     end;
  8
  9  end;
 10  /

Package body created.

SQL>
SQL> select pkg_global.f_countryUSA_cd from dual;

F_COUNTRYUSA_CD
---------------------------------------------
USA

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
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