Conversion in Oracle function.

Hello

So here's the scenario I have. I was wondering if there is any oracle function provides or is it possible that I could achieve this goal.
CREATE OR REPLACE procedure TestA 
(
      partnumber               IN  number,
      partsubnum               IN  varchar2,
      errstring             OUT varchar2
) as

--  Declare local variables

ll_inputpartnum varchar2(100);


Begin

    ll_inputpartnum := partnumber || partsubnum; -- Concatinate partnumber and partsubnum
  -- Will need to convert this variable to number.

    TestB.Process(ll_inputpartnum,parameter2, s_errstring, errnum); --ll_inputpartnum must be of type number 
     if  errnum <> compkg.success then
       errstring := s_errstring;
       return;
     end if;
  
  
Exception 
    When others then 
    Null;    
End;
/
I don't have the ability to change anything about how to TestB.Process.

There are therefore two problem I am trying to solve in this scenario.

First, the input parameter - ll_inputpartnum in TestB.Process takes input of only of number type. So I need to convert somehow the concatenated in full ll_inputpartnum.

Second problem, procedure TestB.Process - after completing his treatment, goes from ll_inputpartnum to the third procedure. Let's say TestC procedure. TestC procedure, so I need to break in again value concatenated in original partnumber and partsubnum.

The value concatenated - ll_inputpartnum does not change through this process.

So, I'm trying to understand the best way to approach this situation.

Thank you

Published by: Ramses on May 25, 2010 13:18

with a function like (using also the package of William)

function combine_parts(p_partnum in integer,p_partsubnum in varchar2) return integer is
  l_length pls_integer := 5;  /* adjust to the maximum possible length of partsubnum */
  hex_val  varchar2(5) := '';
begin
  if length(p_partsubnum) > l_length then
    return 0;
  end if;
  for i in 1 .. l_length loop
    hex_val := hex_val || to_base(ascii(substr(lpad(p_partsubnum,l_length,chr(0)),i,1)),16)
  end loop;
  return p_partnum * power(256,l_length) + to_decimal(hex_val,16);
end;

You can simply

ll_inputpartnum := combine_parts(partnum,partsubnum);

and finally, the parameter ll_inputpartnum can be connected to the appropriate process
you will need another function to find partnum and partsubnum in another process, because it will be just ll_inputpartnum

function concatenated_parts(p_number in integer,p_separator in varchar2 default '|') return varchar2 is
  l_length pls_integer := 5;  /* adjust to the maximum possible length of partsubnum */
  hex_val  varchar2(5);
  chr_val  varchar2(5) := '';
  l_partnum integer;
begin
  l_partnum := trunc(p_number / power(256,l_length));
  hex_val := to_base(p_number - l_partnum * power(256,l_length),16);
  if length(hex_val) > l_length then
    return '';
  end if;
  for i in 1 .. l_length loop
    chr_val := chr_val || chr(to_decimal(substr(hex_val,i,1),16));
  end loop;
  return to_char(l_partnum) || p_separator || chr_val;
end;

Concerning

Etbin

p.s. features are not tested (no database home)

Tags: Database

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