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Oracle创建dblink报错:ORA-01017、ORA-02063解决

oracle环境:oracle 10.2.0.1 创建的 public dblink 连接oracle 11.2.0.3 ora-01017: invalid username/password; logon denied ora-02063: preceding line from 一.创建dblink create public database link dmz63 connect to xyy identified by xyy using '

  oracle环境:oracle 10.2.0.1 创建的 public dblink 连接oracle 11.2.0.3

  ora-01017: invalid username/password; logon denied ora-02063: preceding line from

  一.创建dblink

  create public database link dmz63

  connect to xyy identified by xyy

  using '(description =(address_list =(address = (protocol = 10.0.0.1)(host = 192.xxx.xxx.xxx)(port = 2261)))(connect_data = (service_name = xyy)))';

  二.创建dblink 后使用时提示如下错误:

  select * from dual@dmz63

  报错如下:

  ora-01017: invalid username/password; logon denied

  ora-02063: preceding line from

  三、问题分析:

  根据ora-01017的提示是连接到另一方的用户密码错误,于是直接使用配置的用户密码(lsxy/lsxy)登录数据库发现正常登录,进一步的查看建立好后的dblink 语句,其中用户名都转化为了大写,由此猜测密码是否也被转化为了大写从而导致密码错误。

  根据猜测百度了下,确实有这种情况。当9i或10g的版本的oracle数据库连接11g的版本时,会自动将密码转化为大写。

  四、解决办法:

  我们将dblink 的创建语句稍微改写即可,,如下:

  将密码用双引号引起来

  create public database link dmz63

  connect to xyy identified by "xyy"

  using '(description =(address_list =(address = (protocol = tcp)(host = 10.0.0.1)(port = 2261)))(connect_data = (service_name = xyy))';

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