通过 C# 连接到 Oracle 数据库? [英] Connecting to Oracle Database through C#?

问题描述

我需要通过 Visual Studio 2010 连接到 Oracle DB(外部).但我不想在我的机器上安装 Oracle.在我的项目中，我引用了:System.Data.OracleClient.但它不能满足需要.我有一个 Oracle SQL Developer IDE"，我在其中针对 oracle db 运行 SQL 查询.

I need to connect to a Oracle DB (external) through Visual Studio 2010. But I dont want to install Oracle on my machine. In my project I referenced: System.Data.OracleClient. But its not fulfilling the need. I have an "Oracle SQL Developer IDE" in which I run SQL queries against oracle db.

到目前为止我有这个代码:

I have this code so far:

 private static string GetConnectionString()
    {
        String connString = "host= serverName;database=myDatabase;uid=userName;pwd=passWord";
        return connString;
    }

 private static void ConnectingToOracle()
    {
        string connectionString = GetConnectionString();
        using (OracleConnection connection = new OracleConnection())
        {
            connection.ConnectionString = connectionString;
            connection.Open();
            Console.WriteLine("State: {0}", connection.State);
            Console.WriteLine("ConnectionString: {0}",
                              connection.ConnectionString);

            OracleCommand command = connection.CreateCommand();
            string sql = "SELECT * FROM myTableName";
            command.CommandText = sql;

            OracleDataReader reader = command.ExecuteReader();
            while (reader.Read())
            {
                string myField = (string)reader["MYFIELD"];
                Console.WriteLine(myField);
            }
        }
    }

到目前为止，我阅读了这些博客:

So far I read these blogs:

http://st-curriculum.oracle.com/tutorial/DBXETutorial/index.htm

http://blogs.msdn.com/b/kaevans/archive/2009/07/18/connecting-to-oracle-from-visual-studio.aspx

到目前为止，我还没有从 Oracle 下载任何东西.我应该采取哪些步骤来实现这一目标?

So far I have not downloaded anything from Oracle. What steps should I take to make this happen?

推荐答案

首先你需要从这个站点下载并安装 ODPhttp://www.oracle.com/technetwork/topics/dotnet/index-085163.html

First off you need to download and install ODP from this site http://www.oracle.com/technetwork/topics/dotnet/index-085163.html

安装后添加程序集Oracle.DataAccess.dll的引用.

After installation add a reference of the assembly Oracle.DataAccess.dll.

你很高兴去做这件事.

using System; 
using Oracle.DataAccess.Client; 

class OraTest
{ 
    OracleConnection con; 
    void Connect() 
    { 
        con = new OracleConnection(); 
        con.ConnectionString = "User Id=<username>;Password=<password>;Data Source=<datasource>"; 
        con.Open(); 
        Console.WriteLine("Connected to Oracle" + con.ServerVersion); 
    }

    void Close() 
    {
        con.Close(); 
        con.Dispose(); 
    } 

    static void Main() 
    { 
        OraTest ot= new OraTest(); 
        ot.Connect(); 
        ot.Close(); 
    } 
}

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