Removing human workflow tasks

Question

We have some Composites that involve human workflow tasks.
There were some stale instances, and we have removed these composite instances.
I still see the human workflow tasks from these instances in the worlist app.
How is the easiest way to remove these old tasks ?
We are om SOA Suite 11.1.1.4

Answer 1

Use the below script to purge the stale, terminated and completed instance from SOA Suite Dehydration store
alter session set current_schema=DEV_SOAINFRA;
DECLARE
MAX_CREATION_DATE timestamp;
MIN_CREATION_DATE timestamp;
batch_size integer;
max_runtime integer;
retention_period timestamp;
BEGIN
MIN_CREATION_DATE := to_timestamp('2005-11-01','YYYY-MM-DD');
MAX_CREATION_DATE := to_timestamp('2011-11-09','YYYY-MM-DD');
max_runtime := 120;
batch_size := 20000;
soa.delete_instances(
min_creation_date => MIN_CREATION_DATE,
max_creation_date => MAX_CREATION_DATE,
batch_size => batch_size,
max_runtime => max_runtime,
purge_partitioned_component => true);
END;