c++ ADO 连接ORACLE 数据库 windows系统验证方式连接老是失败.

Question

开发过程中要用C++ 连接oracle 数据库，但是由于数据库的密码不知道，所有用系统验证的方式连接数据库，但是查询了网上的各种资料，一直都无法连接上数据库.

参考到的资料有.
http://www.codeproject.com/Articles/2304/ADO-Connection-Strings

http://www.connectionstrings.com/oracle/

代码:
OLE DB Provider for Oracle (from Oracle).
For Standard security:

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strConnect = _T("Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;"
"User Id=myUsername;Password=myPassword;");
For a Trusted connection:

OS Authenticated connect setting user ID to "/":
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strConnect = _T("Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;"
"User Id=/;Password=;");
OS Authenticated connect using OSAuthent:
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strConnect = _T("Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;OSAuthent=1;")
Note: "Data Source=" must be set to the appropriate Net8 name which is known to the naming method in use. For example, for Local Naming, it is the alias in the tnsnames.ora file; for Oracle Names, it is the Net8 Service Name.

For more information, see: Oracle Provider for OLE DB Developer's Guide.

求大神指导啊，好几天了，就是无法用系统的验证连接数据库(Administrator用户已经加入到SYSDBA组里面了的）

Answer 1

你不用ADO，使用OLEDE 使用者模板！你添加模板的时候，就叫你选择provider，登陆的id和密码，并且可以测试数据库连接，连接成功之后，就可以选择数据库中你要操作的表，最后确定，就可以了