V$SORT_USAGE

Columns
   ___________________________
 
   USER
   SESSION_ADDR
   SESSION_NUM
   EXTENTS
   SQLADDR
   SQLHASH
   TABLESPACE
   CONTENTS
   SEGTYPE
   BLOCKS
   SEGBLK#
   SEGRFNO#
   SEGFILE#

Related Views:

V$GLOBAL_TRANSACTION 
V$SHARED_POOL_RESERVED 
V$SORT_SEGMENT 
V$STATNAME 
V$SYSSTAT 
V$SYSTEM_CURSOR_CACHE 
V$SYSTEM_EVENT 
V$TRANSACTION