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Oracle view中变量使用

Oracle view中变量使用
 
1、新建 package(类似java接口) 
Java代码  
create or replace package p_view_param  is  
    function setStringOne(strOne varchar2) return varchar2;  
    function getStringOne  return varchar2;  
    function setStringTwo(strTwo varchar2) return varchar2;  
    function getStringTwo  return varchar2;  
    function setStringThree(strThree varchar2) return varchar2;  
    function getStringThree  return varchar2;  
      
    function setNumberOne(numOne number) return number;  
    function getNumberOne  return number;  
    function setNumberTwo(numTwo number) return number;  
    function getNumberTwo  return number;      
end p_view_param;  
 
2、实现 package (类似java接口实现) 
Java代码  
create or replace package body p_view_param is  
  strOneValue varchar2(50);  
  strTwoValue varchar2(50);  
  strThreeValue varchar2(50);  
  numOneValue number ;  
  numTwoValue number ;  
  function setStringOne(strOne varchar2) return varchar2 is  
  begin  
    strOneValue:=strOne;  
    return strOneValue;  
  end;  
  function getStringOne  return varchar2 is  
  begin  
    return strOneValue;  
  end;  
  function setStringTwo(strTwo varchar2) return varchar2 is  
  begin  
    strTwoValue:=strTwo;  
    return strTwoValue;  
  end;  
  function getStringTwo  return varchar2 is  
  begin  
    return strTwoValue;  
  end;    
  function setStringThree(strThree varchar2) return varchar2 is  
  begin  
    strThreeValue:=strThree;  
    return strThreeValue;  
  end;  
  function getStringThree  return varchar2 is  
  begin  
    return strThreeValue;  
  end;   
        
  function setNumberOne(numOne number) return number is  
  begin  
    numOneValue:=numOne;  
    return numOneValue;  
  end;  
  function getNumberOne  return number is  
  begin  
    return numOneValue;  
  end;    
  function setNumberTwo(numTwo number) return number is  
  begin  
    numTwoValue:=numTwo;  
    return numTwoValue;  
  end;  
  function getNumberTwo  return number is  
  begin  
    return numTwoValue;  
  end;   
  
end p_view_param;  
 
3、view 中使用变量 
Java代码  
create or replace view vw_test as  
select *  
from test_table  
where yyyymmdd = p_view_param.getStringOne()  
and prod = p_view_param.getStringTwo();  
 
4、view使用 
Java代码  
select * from vw_test    
where p_view_param.setStringOne('20130519') = '20130519'  
and p_view_param.setStringTwo('ALL') = 'ALL'  
 
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