SAP：利用 FIELD-SYMBOLS 的技巧 ＜例＞
"加總指定月份某個會計科目的金額
data: s_fieldname(15) type c. "欄位
data: nTTL type p decimals 3. "加總
data: i(2) type n. "臨時變數
data: nMonth(2) type N. "暫存月
FIELD-SYMBOLS <fs&gl TYPE P.
select * from glpct where
RLDNR = '8A' AND "分類帳
RRCTY = '0' AND "記錄類型
RVERS = '000' AND "版本
RYEAR = 2006 AND "會計年度
RPMAX = 16 AND "期間
RBUKRS = 'TSMC' AND "公司代碼
KOKRS = 'TW' AND "成本控制範圍
RPRCTR = 'P1' AND "利潤中心
RACCT = '1241050000'.
nTTL = glpct-hslvt.
i = 1.
do 12 times.
CONCATENATE 'GLPCT-HSL' i INTO s_fieldname.
ASSIGN (s_fieldname) TO <fs&gl . "動態給欄位
nTTL = nTTL + <fs&gl .
i = i + 1.
if i > nMonth .
exit.
endif.
enddo.
endselect.
