SQL Script for select data from ebs and make a csv file to FTP

DECLARE
  CURSOR cur_lcy_test IS
    SELECT rcta.customer_trx_id, rcta.trx_number, rcta.trx_date
      FROM ra_customer_trx_all rcta
     WHERE rcta.customer_trx_id = 11993;
  --
  rec_lcy_test cur_lcy_test%ROWTYPE;
  --
  w_csv_line_num  NUMBER := 0;
  TYPE tbl_varchar2 IS TABLE OF VARCHAR2(4000) INDEX BY BINARY_INTEGER;
  w_rec_data      tbl_varchar2;
  w_separator     VARCHAR2(1) := ',';
  w_file_name     xxifc_if_file_status.if_file_name%TYPE; -- ファイル名
  w_utl_file_type utl_file.file_type;
  w_flag          VARCHAR2(20) DEFAULT NULL;
  w_rec_count     NUMBER DEFAULT 0;
  w_loop_num      NUMBER DEFAULT 0;
  w_file_path     VARCHAR2(2000) DEFAULT NULL;
  w_filename      utl_file.file_type;
  --
  c_open_mode_read  CONSTANT VARCHAR2(2000) := 'r';
  c_open_mode_write CONSTANT VARCHAR2(2000) := 'w';
  c_true            CONSTANT VARCHAR2(2000) := 'TRUE';
  c_false            CONSTANT VARCHAR2(2000) := 'FALSE';
  --
BEGIN
  OPEN cur_lcy_test;
  <<get_lcy_test_loop>>
  LOOP
    FETCH cur_lcy_test
      INTO rec_lcy_test;
    EXIT WHEN cur_lcy_test%NOTFOUND;
    --
    w_csv_line_num := w_csv_line_num + 1;
    w_rec_data(w_csv_line_num) := xxcmpz11.func_make_qt2_str(to_char(rec_lcy_test.customer_trx_id)) ||
                                  w_separator ||
                                  xxcmpz11.func_make_qt2_str(to_char(rec_lcy_test.trx_number)) ||
                                  w_separator ||
                                  xxcmpz11.func_make_qt2_str(to_date(rec_lcy_test.trx_date,
                                                                     'yyyy/mm/dd'));
    --
  END LOOP get_lcy_test_loop;
  --
  w_file_name := 'LCY_WRITE_FILE_TEST.csv';
  w_file_path := 'XXIF_OUTPUT'; --all_directories.directory_name
  BEGIN
    w_utl_file_type := utl_file.fopen(location     => w_file_path,
                                      filename     => w_file_name,
                                      open_mode    => c_open_mode_read,
                                      max_linesize => 32767);
    w_flag          := c_true;
    utl_file.fclose(file => w_utl_file_type);
  EXCEPTION
    WHEN OTHERS THEN
      w_flag := c_false;
  END;
  IF (w_flag = c_true) THEN
    dbms_output.put_line('w_flag');
  END IF;
  --
  w_rec_count := w_rec_data.count;
  --
  w_utl_file_type := utl_file.fopen(location     => w_file_path,
                                    filename     => w_file_name,
                                    open_mode    => c_open_mode_write,
                                    max_linesize => 32767);
  --
  <<user_file_line_loop>>
  FOR w_loop_num IN 1 .. w_rec_count LOOP
    utl_file.put_line(file   => w_utl_file_type,
                      buffer => convert(w_rec_data(w_loop_num),
                                        'JA16SJIS',
                                        'UTF8')); --改动
  END LOOP user_file_line_loop;
  -- ファイルのクローズ
  IF (utl_file.is_open(file => w_utl_file_type)) THEN
    utl_file.fclose(file => w_utl_file_type);
  END IF;
  --
  --w_filename := utl_file.fopen(c_location, c_bat_name, 'a');

  --utl_file.put_line(w_filename,
  --                  convert('ren ' || w_file_name || ' ' || replace(w_file_name,' ','')||chr(13),
  --                                      'JA16SJIS',
  --                                      'UTF8'));
  --utl_file.fflush(w_filename);
  --utl_file.fclose(w_filename);             

  --
  CLOSE cur_lcy_test;
END;