public class Put_line {
  
public static void put_line(String line, String filename, String enc, String[] msg)
  throws Exception {
    java.io.FileOutputStream os = null;
    try {
      os = new java.io.FileOutputStream(filename, true);
      String encod = enc==null ? System.getProperty("file.encoding") : enc;
      java.io.PrintWriter pw = new java.io.PrintWriter(new java.io.OutputStreamWriter(os, encod), true);
      pw.println(line);
      msg[ 0 ]=null;
    } catch (Exception ex) {
      msg[ 0 ] = ex.getMessage();
    } finally {
      if (os!=null) {os.flush(); os.close();}
    } 
  }
}

create procedure put_line (
  line varchar( 4000 )
, filename varchar( 255 )
, enc varchar( 128 )
, out msg varchar( 4000 )
)
language java 
parameter style java
external action
external name 'Put_line.put_line';

call put_line('хеллоу, ворлд!', 'c:/hello.txt', null, ?)