Don't worry --- there are still problems - CREATE TABLESPACE "BOB" DATAFILE 'D:\ORACLE\ORADATA\EREMB\ENF_DATA1.DBF' SIZE -1189609472.-.294967296 REUSE AUTOEXTEND ON NEXT 1048576 MAXSIZE UNLIMITED NOLOGGING ONLINE PERMANENT BLOCKSIZE 8192 EXTENT MANAGEMENT LOCAL AUTOALLOCATE SEGMENT SPACE MANAGEMENT MANUAL Of course, we store our data in a very compact format.