无法使用c＃连接到Oracle

Question

I have trouble connecting to an Oracle 11g XE instance that is running on a VM (on my local machine). I'm trying to connect to it with c# using:

using System.Data.OracleClient;
OracleConnection conn = new OracleConnection("User Id=system;Password=mypassword;Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=192.168.1.102)(PORT=1521))(CONNECT_DATA=(SID=UDW))););
    oc.Open();

Error I'm getting is:

System.Data.OracleClient requires Oracle client software version 8.1.7 or greater.

Does this point to Oracle, or the version of the DLL? Oracle is higher than 8.

Answer 1

To do it right, you need to install Oracle client and use Oracle.DataAccess.Dll that will be installed in that client directory under ODP.net directory. This is recommended way to connect to Oracle even though, Microsoft provides OleDb (not recommended to use) and System.Data.OracleClient . Microsoft recommendation is to use provider-native data connectivity. Oracle provides both clients, for x86 and x64. Using ODP.net allows for Oracle optimizations.

Answer 2

it seems you need to update the oracle client library on your client machine. download it Oracle downloads