Oracle中位运算[转载]

     

select   utl_raw.bit_and('0','4')   from   dual;  或者 select bitand('6','4')   from   dual;

utl_raw这个包含有bit_and,bit_or及bit_complement等位运算函数。如：

SQL>   select   utl_raw.bit_and('01','11')   from   dual;       
  UTL_RAW.BIT_AND('01','11')  
  --------------------------------------------------------------------------------  
  01  
   
  SQL>   select   utl_raw.bit_or('01','11')   from   dual;       
  UTL_RAW.BIT_OR('01','11')  
  --------------------------------------------------------------------------------  
  11  
   
  SQL>   select   utl_raw.bit_xor('01','11')   from   dual;       
  UTL_RAW.BIT_XOR('01','11')  
  --------------------------------------------------------------------------------  
  10  
   
  求反函数  
  SQL>   select   utl_raw.bit_complement('01')   from   dual;       
  UTL_RAW.BIT_COMPLEMENT('01')  
  --------------------------------------------------------------------------------  
  FE   
    
从JAVAEye上转载的： http://www.cnblogs.com/xinyuxin912/archive/2008/09/22/1295882.html