update mdm_cmd set arg1='1' where cmd_name='wifi_on_off'
select * from mdm_cmd where cmd_name='wifi_on_off'
delete from mdm_cmd where cmd_name='wifi_on_off'
insert into mdm_cmd (cmd_name,arg1,arg2,arg3) values('wifi_on_off','1','1','3')
update mdm_cmd set arg1='1' where cmd_name='wifi_on_off'
select * from mdm_cmd where cmd_name='wifi_on_off'
delete from mdm_cmd where cmd_name='wifi_on_off'
insert into mdm_cmd (cmd_name,arg1,arg2,arg3) values('wifi_on_off','1','1','3')