What current executing SQL when Package is in flight

Question

I know I can use the SQL_ID in V$SESSION to identify the SQL statement that each session in V$SESSION is running. But what if the session is running a PLSQL block that includes many SQL statements. How can I tell which SQL statement it is currently on?
For example I run procedure PERFORM_ETL which runs this:
BEGIN
insert into table1 select * from table 2;
merge into table3 using blah blah blah;
delete table4;
END;
How can I determine if the session is doing the insert, the merge or the delete?
The SQL_ID in v$session only points to the perform_etl proc

Answer 1

Usually your problem can be described with 'Who cares'. I mean, for what reason do you do this? I doubt that there's a business need to get 100 % accurate answers for this. Normally such things are used to get a picture about the growth of data.
Personally I would prefer to have up-to-date statistics for all tables and just query the number of rows from there. Sufficient for me in < 99 % of all cases.
Just my $ .02...