Oracle creates packages and stored procedures and invokes examples

Source: Internet
Author: User
--Specification    create or replace package test_pkg is  --test_pkg for package name     procedure showmessage;  --declares a process    Function myadd (x in number,y  in number)  return number; --declaration function    end test_pkg;         --Main    Create or replace package body test_pkg is  --package names must be consistent    procedure showmessage is    --implementation of procedures in the specification    begin   dbms_output.put_line (' Create a simple package.  --print strings in single quotes    end showmessage;      function myadd (x in  number,y in number)  --implementation function    return number is   mySum  number:=1;   begin   mysum:=x+y;   return mysum;   end myAdd;    end test_pkg;        --Call package, this test only with    set serveroutput on   declare    testsum number:=1 ;   begin   test_pkg.showmessage;   testsum:=test_pkg.myadd (10,11);   DBMS _output.put_line (testsum);   end;  
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