select SYS_CONTEXT('USERENV','IP_ADDRESS') from dual --客户机IP
select utl_inaddr.get_host_address from dual --服务器IP
select SYS_CONTEXT('USERENV','HOST') from dual --客户机名
select utl_inaddr.get_host_name from dual --服务器名
select utl_inaddr.get_host_address from dual --服务器IP
select SYS_CONTEXT('USERENV','HOST') from dual --客户机名
select utl_inaddr.get_host_name from dual --服务器名