把EBS 数据库从11.1.0.7升级到11.2.0.4后，无法登陆
[oraprod@ebsprod PROD_ebsprod]$ sqlplus / as sysdba
ERROR:
ORA-01804: failure to initialize timezone information
SP2-0152: ORACLE may not be functioning properly
FIX:
#############################
# Timezone Specification file
# For 11gR2,time zone file location should by empty
#############################
export ORA_TZFILE=""
正常登陆：
[oraprod@ebsprod 11.2.0]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Sun Jun 19 09:05:17 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>
ORA-01804: failure to initialize timezone information
原文：http://7642644.blog.51cto.com/7632644/1790729