oadb01:/home/oracle> echo $NLS_LANG SIMPLIFIED CHINESE_CHINA.AL32UTF8 oadb01:/home/oracle> sqlplus query/query SQL*Plus: Release 11.2.0.4.0 Production on 星期一 2月 15 20:49:30 2016 Copyright (c) 1982, 2013, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> COL NICK FORMAT A30 SQL> SELECT * FROM DENGJI; NICK F CREATETIME ------------------------------ - -------------- 赵杨健 1 15-2月 -16 oadb01:/home/oracle> export NLS_LANG=american_america.AL32UTF8 oadb01:/home/oracle> sqlplus query/query SQL*Plus: Release 11.2.0.4.0 Production on Mon Feb 15 20:51:25 2016 Copyright (c) 1982, 2013, Oracle. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> COL NICK FORMAT A30 SQL> SELECT * FROM DENGJI; NICK F CREATETIME ------------------------------ - ------------------ 赵杨健 1 15-FEB-16