|  
 NUM 
 | 
 
 NUMBER 
 | 
 
 Parameter number 
 | 
|  
 NAME 
 | 
 
 VARCHAR2(64) 
 | 
 
 Name of the parameter 
 | 
|  
 TYPE 
 | 
 
 NUMBER 
 | 
 
 Parameter type: 
1 - Boolean 
2 - String 
3 - Integer 
4 - Parameter file 
5 - Reserved 
6 - Big integer 
 
 | 
|  
 VALUE 
 | 
 
 VARCHAR2(512) 
 | 
 
 Parameter value for the session (if modified within the session); otherwise, the instance-wide parameter value 
 | 
|  
 ISDEFAULT 
 | 
 
 VARCHAR2(9) 
 | 
 
 Indicates whether the parameter is set to the default value (TRUE) or the parameter value was specified in the parameter file (FALSE) 
 | 
|  
 ISSES_MODIFIABLE 
 | 
 
 VARCHAR2(5) 
 | 
 
 Indicates whether the parameter can be changed with ALTER SESSION (TRUE) or not (FALSE) 
 | 
|  
 ISSYS_MODIFIABLE 
 | 
 
 VARCHAR2(9) 
 | 
 
 Indicates whether the parameter can be changed with ALTER SYSTEM and when the change takes effect: 
IMMEDIATE - Parameter can be changed with ALTER SYSTEM regardless of the type of parameter file used to start the instance. The change takes effect immediately. 
DEFERRED - Parameter can be changed with ALTER SYSTEM regardless of the type of parameter file used to start the instance. The change takes effect in subsequent sessions. 
FALSE - Parameter cannot be changed with ALTER SYSTEM unless a server parameter file was used to start the instance. The change takes effect in subsequent instances. 
 
 | 
|  
 ISMODIFIED 
 | 
 
 VARCHAR2(10) 
 | 
 
 Indicates whether the parameter has been modified after instance startup: 
MODIFIED - Parameter has been modified with ALTER SESSION 
SYSTEM_MOD - Parameter has been modified with ALTER SYSTEM (which causes all the currently logged in sessions' values to be modified) 
FALSE - Parameter has not been modified after instance startup 
 
 | 
|  
 ISADJUSTED 
 | 
 
 VARCHAR2(5) 
 | 
 
 Indicates whether Oracle adjusted the input value to a more suitable value (for example, the parameter value should be prime, but the user input a non-prime number, so Oracle adjusted the value to the next prime number) 
 | 
|  
 DESCRIPTION 
 | 
 
 VARCHAR2(64) 
 | 
 
 Description of the parameter 
 | 
|  
 UPDATE_COMMENT 
 | 
 
 VARCHAR2(255) 
 | 
 
 Comments associated with the most recent update 
 |