set wk_proc_cnt = 0;

  open cur_trsn;

  trsn_loop:
  loop
    fetch next cur_trsn into c_tname,
                             c_prog_name,
                             c_sam_cnt,
                             c_load_cnt,
                             c_base_cond,
                       c_add_cond,
                      c_cycl_code;

    set out_sqlstate = sqlstate;
    if out_sqlstate = err_notfound
    then leave trsn_loop
    end if;

   set wk_script = '';
   set wk_script_select = '';
   set wk_script_where = '';

    select string(' select count(*) into c_sel_cnt',
                  ' from ',rtrim(c_tname) )
    into wk_script_select;

    -- Input 조건절(기준년월일) Check
    if c_base_cond <> '' then
       select string(' where ',rtrim(c_base_cond),'= ',
                       char(39),rtrim(in_work_trgt_ymd),char(39) )
        into wk_script_where;
   else
       select string(' where 1 = 1 ')
         into wk_script_where;
    end if;

    -- 추가조건절 추가
   if c_add_cond <> '' then
      select string(wk_script_where,' and ',rtrim(c_add_cond))
        into wk_script_where;
   else
      select string(wk_script_where, ' and 1 = 1 ' )
        into wk_script_where;
   end if;

    -- Script 연결
    select string(rtrim(wk_script_select),rtrim(wk_script_where))
    into wk_script;

   execute immediate wk_script          ------> 이문장 괜찮은건가요?

   사이베이스 12.7입니다. 특별한 error은 않나는데, 데이터 값을 로딩 시키지 못하네요.. 

   execute immediate wk_script : 이부분이 의심이 가서요.. 

   너무 초보적인 질문이라 죄송합니다.