[PL/SQL] Convert number to binary string

Here is a simple function to convert a number to a binary string in Oracle PLSQL. This can also easily be converted to an number array instead.

 function num_to_bin(  
  n number  
 return varchar2  
  binval varchar2(64);  
  n2   number := n;  
  while (n2 > 0) loop  
    binval := mod(n2, 2) || binval;  
    n2   := trunc(n2 / 2);  
  end loop;  
  return binval;  
 end num_to_bin;  

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