COMMAND VALUE
SYS_CONTEXT(‘USERENV’,’AUTHENTICATION_TYPE’) DATABASE
SYS_CONTEXT(‘USERENV’,’CURRENT_SCHEMA’) SIGO
SYS_CONTEXT(‘USERENV’,’CURRENT_SCHEMAID’) 85
SYS_CONTEXT(‘USERENV’,’CURRENT_USER’) SIGO
SYS_CONTEXT(‘USERENV’,’CURRENT_USERID’) 85
SYS_CONTEXT(‘USERENV’,’DB_DOMAIN’) finiper.it
SYS_CONTEXT(‘USERENV’,’DB_NAME’) fnsigo
SYS_CONTEXT(‘USERENV’,’HOST’) WORKGROUP\RICHLAB
SYS_CONTEXT(‘USERENV’,’INSTANCE’) 1
SYS_CONTEXT(‘USERENV’,’INSTANCE NAME’) fnsigo
SYS_CONTEXT(‘USERENV’,’IP_ADDRESS’) 192.168.244.110
SYS_CONTEXT(‘USERENV’,’ISDBA’) FALSE
SYS_CONTEXT(‘USERENV’,’LANG’) I
SYS_CONTEXT(‘USERENV’,’LANGUAGE’) ITALIAN_ITALY.WE8MSWIN1252
SYS_CONTEXT(‘USERENV’,’NETWORK_PROTOCOL’) tcp
SYS_CONTEXT(‘USERENV’,’NLS_CALENDAR’) GREGORIAN
SYS_CONTEXT(‘USERENV’,’NLS_CURRENCY’)
SYS_CONTEXT(‘USERENV’,’NLS_DATE_FORMAT’) YYYYMMDD
SYS_CONTEXT(‘USERENV’,’NLS_DATE_LANGUAGE’) ITALIAN
SYS_CONTEXT(‘USERENV’,’NLS_TERRITORY’) ITALY
SYS_CONTEXT(‘USERENV’,’OS_USER’) Richlab
SYS_CONTEXT(‘USERENV’,’SESSION_USER’) SIGO
SYS_CONTEXT(‘USERENV’,’SESSION_USERID’) 85
SYS_CONTEXT(‘USERENV’,’SESSIONID’) 77575
SYS_CONTEXT(‘USERENV’,’TERMINAL’) RICHLAB

Most valuable links
http://www.adp-gmbh.ch/ora/misc/dynamic_performance_views.html