ISDEFAULT 	Whether the parameter value is the default 
 
ISSES_MODIFIABLE  
 		TRUE - the parameter can be changed with ALTER SESSION 
		FALSE - the parameter cannot be changed with ALTER SESSION 
ISSYS_MODIFIABLE 
		IMMEDIATE - the parameter can be changed with ALTER SYSTEM 
		DEFERRED - the parameter cannot be changed until the next session 
		FALSE - the parameter cannot be changed with ALTER SYSTEM 
ISMODIFIED 
		Indicates how the parameter was modified. If an ALTER SESSION was 
		performed, the value will be MODIFIED. If an ALTER SYSTEM 
		(which will cause all the currently logged in sessions' values 
		to be modified) was performed, the value will be SYS_MODIFIED. 
ISADJUSTED 	Indicates that the rdbms 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 the RDBMS adjusted the 
		value to the next prime number)