Ray, They are probably partitioned. Check the USER_TAB_PARTITIONS view. Tom Mercadante Oracle Certified Professional -----Original Message----- From: Ray Stell [mailto:stellr@xxxxxxxxxx] Sent: Friday, September 24, 2004 11:09 AM To: oracle-l@xxxxxxxxxxxxx Subject: null tablespace_name Why do some tables have a null value for tablespace_name? I see these in the system and sys. I found some in owned by joe user, also, how did they do that? select owner, table_name, tablespace_name from all_tables where tablespace_name is null; OWNER TABLE_NAME TABLESPACE_NAME ------------------------------ ------------------------------ ------------------------------ SYS ATEMPTAB$ SYS MAP_OBJECT SYSTEM LOGSTDBY$APPLY_PROGRESS SYS ODCI_SECOBJ$ .... =============================================================== Ray Stell stellr@xxxxxx (540) 231-4109 KE4TJC 28^D -- //www.freelists.org/webpage/oracle-l -- //www.freelists.org/webpage/oracle-l