Question

abap中三个表之间的关联怎么建立？写段代码呗?

Answer 1

先把3个表都插入内表
循环其中一个表，在read另外的表，这样可以方便一需要处理数据的情况

Answer 2

SELECT c~carrname p~connid f~fldate
INTO CORRESPONDING FIELDS OF TABLE itab
FROM ( ( scarr AS c
INNER JOIN spfli AS p ON p~carrid = c~carrid
AND p~cityfrom = p_cityfr
AND p~cityto = p_cityto )
INNER JOIN sflight AS f ON f~carrid = p~carrid
AND f~connid = p~connid ).

Answer 3

用外键