在Linux下sqlplus 登录时显示SID 和用户名

一般显示为：

SQL> show user

USER 为 "SYS"
SQL>

在 $ORACLE_HOME/sqlplus/admin目录下 编辑glogin.sql文件

set termout off
define gname=idle
column global_name new_value gname
select lower(user)||’@’ ||substr(global_name,1,decode(dot,0,length(global_name),dot-1)) global_name from (select global_name, instr(global_name,’.') dot from global_name);
set sqlprompt ‘&gname>’
set termout on

[root@ls ~]# su - oracle
[oracle@ls ~]$ sqlplus

SQL*Plus: Release 11.2.0.1.0 Production on Sat Jan 11 11:05:46 2014

Copyright (c) 1982, 2009, Oracle.  All rights reserved.

Enter user-name: sys  as sysdba
Enter password:

Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options

sys@LS1>show user
USER is "SYS"
sys@LS1>

sys@LS1>conn scott
Enter password:
Connected.
scott@LS1>show user
USER is "SCOTT"
scott@LS1>