System generated number

Question

Hi all,
I m developing a module pool with z table 1 Header & 1 Item table. Now I would like  to ask how I can get system generated number for the pk filed supose gate pass number and my filed type is char 10.
When user enter a new entry then system will auto generqte the gpass number .
so pls let me know if any one can help me to do this job.
Thanks in advance.
manju

Answer 1

Hey Manju,
first pre determine what range your number should be having , like  starting from 0000000001 like that or 1000000001 etc, after that  :
Scenario 1 ( if you have to show the number as a field  on the screen)
write a select query in the PBO of the screen as below
let the field name be gateno.
select max(gateno)
          from <dbtab>
          into < var1>.
this will fetch the last number and then you can increase it.
if syst-subrc is initial.
var1 = var1 + 1.
endif.
move the value of var1 to the screen field name.
Scenario 2 ( If you just need to update in the database table)
write the above select query in the PAI module of the screen when the user performs some action like SAVE.
Hope this helps,
reward if useful,
Regards ,
RK