NLS_LANG for NLS_CHARACTERSET = US7ASCII - How to set it?
SQL> SELECT * FROM NLS_DATABASE_PARAMETERS ;
PARAMETER                      VALUE
	
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NLS_LANGUAGE                   AMERICAN
	
NLS_TERRITORY                  AMERICA
	
NLS_CURRENCY                   $
	
NLS_ISO_CURRENCY               AMERICA
	
NLS_NUMERIC_CHARACTERS         .,
	
NLS_CHARACTERSET               US7ASCII
	
NLS_CALENDAR                   GREGORIAN
	
NLS_DATE_FORMAT                DD-MON-RR
	
NLS_DATE_LANGUAGE              AMERICAN
	
NLS_SORT                       BINARY
	
NLS_TIME_FORMAT                HH.MI.SSXFF AM
PARAMETER                      VALUE
	
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NLS_TIMESTAMP_FORMAT           DD-MON-RR HH.MI.SSXFF AM
	
NLS_TIME_TZ_FORMAT             HH.MI.SSXFF AM TZR
	
