根据FAGLFLEXT取得科目的借贷发生额以及余额，汇总                                                                                                

判断取得的科目编号是否为总账科目主记录 (科目表)SKA1中的损益报表科目类型(GVTYP)(SKA1-GVTYP = 'X')                                                                                                

从FAGLFLEXT中取得该科目编号范围所对应的各月的月末余额的总和。                                                                        

从FAGLFLEXT中取得该科目编号范围所对应的上年的各月的月末余额的总和。