Multithreading in oracle PLSQL

Question

Hi
I am having 100000 records in my database,
Normally i fetch 1000 records from 100000 in bulk and do the process, after completion of first batch the it took second set of 1000 records from 100000 in bulk and do the process.
Say in the 1st batch there is a transaction for the A/C no : 9856423456
after completion of batch 1
2nd batch is in process here some transaction for the same A/c : 9856423456
so complete this batch
and batch process is continuous till completion of whole record.
there is a dependences between 1st batch and 2nd or some other batch
say in the 1st batch transaction for the A/C no : 9856423456 after completion of this transaction balance available for the A/C no : 9856423456 2,00,000 rupees
in the 2nd or some other batch, some transaction may come for same A/c, so after completion of the first batch only we know what actual balance is.
Now i want implement multi-threading :
how can i implement
Thanks

Answer 1

Balajiraam wrote:
Now i want implement multi-threading : how can i implementThere 2 basic options to parallel processing using PL/SQL.
You can use the Parallel Query (PQ) feature of Oracle. This parallelises SQLs by breaking large scans into a number of smaller scans and running these in parallel. You can also run PL/SQL via PQ by defining a parallel enabled PL/SQL pipeline table function.
This second method is rolling your own parallel processing in PL/SQL. With 11g you can use DBMS_PARALLEL_EXECUTE. You can use DBMS_JOB to run parallel processes. You can use message queues and database pipes (or even plain SQL tables) for IPC. You can use DBMS_LOCK for implementing semaphores and mutexes.
It all depends on your requirements ito multi-threading/parallel processing in PL/SQL.