SAP XI JDBC update SQL statement

Question

Hi,
I am new to JDBC to RFC configuration and is currently on a deadlock.
We are running a real time JDBC update statement where records are created based on employee login. We have configured the sender adapter to retrieved 5 records for every 5 seconds using the SQL query below:
select *  from dtable where  uploaded=false order by recordno asc limit 5;
and update using:
update dtable set uploaded=true where uploaded=false order by recordno asc limit 5;
The problem is that when there are only 3 records retrieved in the selection, the update statement always update 5 records back. This makes records created in-between the select and update to be updated as well.
Can anyone suggest the correct update statement? Can I use the record numbers retrieved from the first statement in the update?
Thanks,
Ryan

Answer 1

Hi,
>>>>Can anyone suggest the correct update statement?
1. you have a few choices but one of them would be to use a stored procedure in the select statement (which would have both select and update statements)
2.
a) select *  from dtable where  uploaded=false order by recordno
b) update dtable set uploaded=true where uploaded=false
c) split them by 5 rows in the mapping (multimapping)
Regards,
Michal Krawczyk