ORA-12705 invalid or unknown NLS parameter value specifiedCause: There are two possible causes: Either an attempt was made to issue an ALTER SESSION statement with an invalid NLS parameter or value; or the NLS_LANG environment variable contains an invalid language, territory, or character set.Action: Check the syntax of the ALTER SESSION statement and the NLS parameter, correct the syntax and retry the statement, or specify correct values in the NLS_LANG environment variable. For more information about the syntax of the ALTER SESSION statement, see the Oracle9i SQL Reference.
错误我也查了,你贴的我看过了,我感觉不是这个问题另外字符集不同,我觉得只影响数据的显示,不影响数据库的连接吧?
lsnrctl start
ALTER SESSION SET NLS_LANGUAGE=AMERICAN;