使用通过锁表函数  ENQUEUE_E_TABLE

针对 函数 varkey 入参，锁表 SFLIGHT

varkey   = |{ sy-mandt }{ |AA| }{ |0017| }{ |20210916| }|.

直接拼接主键就会出现锁表条目数锁不住的情况，SE11、SE16还可编辑

需要改进写法

像下面这样赋值即可针对行项目数据加锁

DATA: BEGIN OF ls_enqu_sflight.
DATA:   mandt  LIKE sflight-mandt.
DATA:   carrid LIKE sflight-carrid.
DATA:   connid LIKE sflight-connid.
DATA:   fldate LIKE sflight-fldate.
DATA: END OF  ls_enqu_sflight.DATA: lv_varkey LIKE rstable-varkey.ls_enqu_sflight-mandt  = sy-mandt.
ls_enqu_sflight-carrid = 'AA'.
ls_enqu_sflight-connid = '0017'.
ls_enqu_sflight-fldate = '20210916'.lv_varkey  = ls_enqu_sflight.CALL FUNCTION 'ENQUEUE_E_TABLE'EXPORTINGtabname        = 'SFLIGHT'varkey         = lv_varkeyEXCEPTIONSforeign_lock   = 1system_failure = 2OTHERS         = 3.
IF sy-subrc IS INITIAL.ENDIF.

 定义锁主键工作区

像上面调用即可成功锁住行项目