The Windows Server 2008 64-bit machine has a 10g client, and the Oracle database connection does not solve the problem.

Windows Server 2008 64-bit machine has a 10g client, 32 and 64 bits unclear

With the service name of the Netmanager inside the company.
Data Source=o10ga;user id=djzd;password=cy2015;
Direct display Tns12514 error, library connection not on ...

If you use

Data source= (description= (address_list= (address= (protocol=tcp) (host=10.72.5.13)) (port=1521) (ADDRESS= TCP) (host=10.72.5.14) (port=1521))
(Address= (PROTOCOL=TCP) (host=10.72.5.14) (port=1521))) (Connect_data= (SERVICE_NAME=O10GA))); User Id=djzd; password=cy2015;

You can connect to the database. However, complex queries can have error ora-00911 errors: Invalid string:

After installing two ha-instant Client-v11.2.0.3.0-x64.rar and ha-instant client-v11.2.0.3.0-x86.rar two clients ...
Use Netmanager inside the service name or cannot connect ... In the latter way the program runs normally.

Data source= (description= (address_list= (address= (protocol=tcp) (host=10.72.5.13)) (port=1521) (ADDRESS= TCP) (host=10.72.5.14) (port=1521))
(Address= (PROTOCOL=TCP) (host=10.72.5.14) (port=1521))) (Connect_data= (SERVICE_NAME=O10GA))); User Id=djzd; password=cy2015;

That's the way it is.

The Windows Server 2008 64-bit machine has a 10g client, and the Oracle database connection does not solve the problem.