abap - 如何使用 VALUE 表达式向 itab 添加新行

Question

ABAP 7.40 给我们带来了新的语法，我还在摸索。
我想在现有表中添加一个新行 lt_itab .我通过添加一个空行并计算出表的当前长度以按索引进行更新找到了一种解决方法，但是有没有更简单的方法？

SELECT spfli~carrid, carrname, connid, cityfrom, cityto
  FROM scarr
  INNER JOIN spfli
  ON scarr~carrid = spfli~carrid
  WHERE scarr~carrid = @carrier
  ORDER BY scarr~carrid
  INTO TABLE @DATA(lt_itab).

"How can I simplify the following code part?" 
DATA(lv_idx) = lines( lt_itab ).
APPEND INITIAL LINE TO lt_itab.
lt_itab[ lv_idx + 1 ] = VALUE #( carrid    = 'UA'
                                 carrname  = 'United Airlines'
                                 connid    = 941
                                 cityfrom  = 'Frankfurt'
                                 cityto    = 'San Francisco' ).

Answer 1

It's all in the documentation :

lt_itab = VALUE #( BASE lt_itab ( carrid = ... ) ).