Specifying First and Next Extent Size for the tblspace tblspace

You cannot specify the first and next extent of a temporary dbspace. The extent size for temporary dbspaces is 100 kilobytes for a 2 kilobyte page system or 200 kilobytes for a 4 kilobyte page system.

To specify the first and next extent sizes of a root tblspace tblspace, use the TBLTBLFIRST and TBLTBLNEXT configuration parameters before you create the root dbspace the first time you start the database server.