方式一:(推荐)Oracle Data Access Components (ODAC) +OleDbConnection
- 该方式无需配置环境变量
1、 下载ODAC 组件,地址为https://www.oracle.com/technetwork/topics/dotnet/utilsoft-086879.html
2、 解压缩文件包,并安装组件,选择Oracle Client 即可
3、修改安装目录 C:\app\Administrator\product\11.2.0\client_1\Network\Admin(安装目录根据前面的安装可以有所不同) 下的 tnsnames.ora 文件。
4、编写访问数据库的C#代码(OleDb驱动)。使用连接字符串1,可以省略步骤3的文件配置。
private static void Method1()
{
//连接字符串方式1:
//string connString = "Provider=OraOLEDB.Oracle.1;Data Source=(DESCRIPTION =(ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = IP地址)(PORT = 1521)))(CONNECT_DATA = (SID = orcl))) ;User Id=test;Password=123456";
//连接字符串方式2:
string connString = "Provider=OraOLEDB.Oracle.1;Data Source=orcl;User Id=test;Password=123456";
using (OleDbConnection conn = new OleDbConnection(connString))
{
try
{
conn.Open();
Console.WriteLine("连接成功!");
string sql = "select * from student";
OleDbCommand com = new OleDbCommand(sql, conn);
OleDbDataReader read = com.ExecuteReader();
while (read.Read())
{
String name = read["name"].ToString();
Console.WriteLine("name:{0}", name);
}
}
catch (Exception ex)
{
Console.WriteLine("连接失败!" + ex.Message);
}
finally
{
if (conn != null)
{
conn.Close();
conn.Dispose();
}
}
}
}
标签:Console,name,C#,乱码,read,OleDbConnection,oracle,conn,string
From: https://www.cnblogs.com/his365/p/16712583.html