LOOP AT it_tablename.
CLEAR line_num.
SELECT COUNT(*) INTO line_num FROM (it_tablename-tabname) .
WRITE: / it_tablename-tabname,it_tablename-devclass, line_num.
ENDLOOP.
IF it_tablename[] IS INITIAL.
MESSAGE '请检查数据表是否存在,若存在请确定其是否为透明表!' TYPE 'S'.
ENDIF.