Ok fine.Customer wants to recreate the whole database with 8k.Right now we are using 9.0.1.4.0 and has parameter db_block_size and db_block_buffers.After creating a new DB with 8k db_block_size ,Do i need to bring the db_block_buffers to hal of its original value???.The next question is do i need to run catalog/catproc etc after new database creation?.Since java system was already installed in the existing DB if i import will it automatically create all the procedures/functions from the export?.Pls. clarify.