DD07T~DOMNAME EQ 'ZD_WFTYPE'这个放在where条件和放在join条件后效果不一样
这个是能取到值的
SELECT
WF_ID,
WF_NAME,
BEGDA,
ENDDA,
DD07T~DDTEXT AS WFTYPE
INTO TABLE @DATA(LT_TABLE)
FROM YAC_T_LIST LEFT JOIN DD07T ON YAC_T_LIST~WFTYPE EQ DD07T~VALPOS AND DD07T~DOMNAME EQ 'ZD_WFTYPE'.
这个语句取不到值
SELECT
WF_ID,
WF_NAME,
BEGDA,
ENDDA,
DD07T~DDTEXT AS WFTYPE
INTO TABLE @DATA(LT_TABLE)
FROM YAC_T_LIST LEFT JOIN DD07T ON YAC_T_LIST~WFTYPE EQ DD07T~VALPOS
WHERE DD07T~DOMNAME EQ 'ZD_WFTYPE'.
