MaxRaiseSize in database adapter

Question

Experts,
I want to read single record on each polling frequency using database adapter as we do using FTP to read single file on each polling frequency by setting the property
MaxRaiseSize to 1. But i could make it to work in database adapter . It is creating separate instance for each record but all on at the same time. but i want single instance on single record on each polling frequency . How can i do this. Please advise.
Thanks a lot for your help.

Answer 1

Hi:
Try setting the following two parameters in the DB Adapter Wizard:
Database Rows per XML Document
Specify the number of rows per XML document when sending events to Oracle BPEL Process Manager or Oracle Mediator. This is the batch setting between the database adapter and its consumer: Oracle BPEL Process Manager or Oracle Mediator. For maximum throughput, it is ideal to pass a collection of rows as a single event. This reduces the per instance overhead and allows batching on the other end; that is, the database adapter merge or insert command can leverage batch database writing if it receives multiple rows as part of one invoke. Leave this set to 1 if your process performs unique processing on each row (if conceptually one row translates to one event).
Database Rows per Transaction
Select Unlimited or enter a value to indicate the number of table rows to process during a single transaction. For example, assume there are 10,000 rows at the start of a polling interval and this field is set to 100. In standalone mode, a cursor iteratively reads and processes 100 rows at a time until all 10,000 rows are processed, dividing the work into 10,000/100=100 sequential transactional units. This is the batch setting between the database and the database adapter. It cannot be set lower than database rows per XML document, which is the batch setting between the database adapter and its consumer: Oracle BPEL Process Manager or Oracle Mediator Component
Hope this helps.
best