Sender JDBC Select Query

Hi Folks,

I have couple of requirements, where I am fetching data from DB2 database. Stored procedure option not available to me.

1. I am fetching PO data from a single table (header repeated + line item) and passing to IDOC.

Query - How to restrict data to fetch data for one PO header and corresponding line items at a time.

2. I am fetching statistical data  (monthly basis - more than 50K records) and passing to proxy. It is having same structure as above.

     Query - How to restrict to fetch unique combinations (ex. 100 PO and corresponding line items) or shall I go by 1 record at a time.

Any optimal solution is welcome.

Regards,

Sachin Dhingra