|  
 ADDR 
 | 
 
 RAW(4 | 8) 
 | 
 
 Address of process state object 
 | 
|  
 PID 
 | 
 
 NUMBER 
 | 
 
 Oracle process identifier 
 | 
|  
 SPID 
 | 
 
 VARCHAR2(12) 
 | 
 
 Operating system process identifier 
 | 
|  
 USERNAME 
 | 
 
 VARCHAR2(15) 
 | 
 
 Operating system process username. Any two-task user coming across the network has "-T" appended to the username. 
 | 
|  
 SERIAL# 
 | 
 
 NUMBER 
 | 
 
 Process serial number 
 | 
|  
 TERMINAL 
 | 
 
 VARCHAR2(30) 
 | 
 
 Operating system terminal identifier 
 | 
|  
 PROGRAM 
 | 
 
 VARCHAR2(48) 
 | 
 
 Program in progress 
 | 
|  
 TRACEID 
 | 
 
 VARCHAR2(255) 
 | 
 
 Trace file identifier 
 | 
|  
 BACKGROUND 
 | 
 
 VARCHAR2(1) 
 | 
 
 1 for a background process; NULL for a normal process 
 | 
|  
 LATCHWAIT 
 | 
 
 VARCHAR2(8) 
 | 
 
 Address of latch the process is waiting for; NULL if none 
 | 
|  
 LATCHSPIN 
 | 
 
 VARCHAR2(8) 
 | 
 
 Address of the latch the process is spinning on; NULL if none 
 | 
|  
 PGA_USED_MEM 
 | 
 
 NUMBER 
 | 
 
 PGA memory currently used by the process 
 | 
|  
 PGA_ALLOC_MEM 
 | 
 
 NUMBER 
 | 
 
 PGA memory currently allocated by the process (including free PGA memory not yet released to the operating system by the server process) 
 | 
|  
 PGA_FREEABLE_MEM 
 | 
 
 NUMBER 
 | 
 
 Allocated PGA memory which can be freed 
 | 
|  
 PGA_MAX_MEM 
 | 
 
 NUMBER 
 | 
 
 Maximum PGA memory ever allocated by the process 
 |