[20161216]sqlplus无法登录与ORA-01821错误.txt

h:\test>sqlplus scott/book@78
SQL*Plus: Release 12.1.0.1.0 Production on Fri Dec 16 16:50:45 2016
Copyright (c) 1982, 2013, Oracle.  All rights reserved.
ERROR:
ORA-00604: error occurred at recursive SQL level 1
ORA-01821: date format not recognized

--本机出现无法登录测试服务器耳朵情况,仔细检查提示ORA-01821: date format not recognized

$ oerr ora 1821
01821, 00000, "date format not recognized"
// *Cause:
// *Action:

--想起上午修改一个nls相关的环境变量,估计其中一个参数修改错误,也许与这个有关.
--在服务器登录:

SCOTT@book> select * from nls_session_parameters ;
PARAMETER                VALUE
------------------------ ----------------------------------
NLS_LANGUAGE             AMERICAN
NLS_TERRITORY            AMERICA
NLS_CURRENCY             $
NLS_ISO_CURRENCY         AMERICA
NLS_NUMERIC_CHARACTERS   .,
NLS_CALENDAR             GREGORIAN
NLS_DATE_FORMAT          YYYY-MM-DD HH24:MI:SS
NLS_DATE_LANGUAGE        AMERICAN
NLS_SORT                 BINARY
NLS_TIME_FORMAT          HH.MI.SSXFF AM
NLS_TIMESTAMP_FORMAT     YYYY-MM-DD HH24:MI:SS.FF
NLS_TIME_TZ_FORMAT       HH.MI.SSXFF AM TZR
NLS_TIMESTAMP_TZ_FORMAT  YYYY-MM-DD HH24:MI:SS.FF TZH:TZM
NLS_DUAL_CURRENCY        $
NLS_COMP                 BINARY
NLS_LENGTH_SEMANTICS     BYTE
NLS_NCHAR_CONV_EXCP      FALSE
17 rows selected.

h:\test>set | grep -i nls
NLS_DATE_FORMAT=YYYY-MM-DD HH24:MI:SS
NLS_TIMESTAMP_FORMAT=HH.MI.SSXFF AM TZR
NLS_TIMESTAMP_TZ_FORMAT=YYYY-MM-DD HH24:MI:SS.FF TZH:TZM

--检查发现NLS_TIMESTAMP_FORMAT设置错误,修改为YYYY-MM-DD HH24:MI:SS.FF,继续测试ok.
--本来想增加NLS_TIME_TZ_FORMAT="HH.MI.SSXFF AM TZR",写错了.做一个记录.

h:\test>set | grep -i nls
NLS_DATE_FORMAT=YYYY-MM-DD HH24:MI:SS
NLS_TIMESTAMP_FORMAT=YYYY-MM-DD HH24:MI:SS.FF
NLS_TIMESTAMP_TZ_FORMAT=YYYY-MM-DD HH24:MI:SS.FF TZH:TZM
NLS_TIME_TZ_FORMAT=HH.MI.SSXFF AM TZR