求救大蝦﹕如何在C#中連接ORACLE數據庫?

Question

在连接串中，其实你可以用服务器名称代替IP
ODBC 
New version:
"Driver={Microsoft ODBC for Oracle};Server=OracleServer.world;Uid=Username;Pwd=asdasd;" 
Old version:
"Driver={Microsoft ODBC Driver for Oracle};ConnectString=OracleServer.world;Uid=myUsername;Pwd=myPassword;" 
OLEDB, OleDbConnection (.NET) 
Standard security:
"Provider=msdaora;Data Source=MyOracleDB;User Id=UserName;Password=asdasd;" 
This one's from Microsoft, the following are from Oracle
Standard Security:
"Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;User Id=Username;Password=asdasd;" 
Trusted Connection:
"Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;OSAuthent=1;" 
OracleConnection (.NET) 
Standard:
"Data Source=Oracle8i;Integrated Security=yes"; 
This one works only with Oracle 8i release 3 or later
Declare the OracleConnection:C#:
using System.Data.OracleClient;
OracleConnection oOracleConn = new OracleConnection();
oOracleConn.ConnectionString = "my connectionstring";
oOracleConn.Open(); VB.NET:
Imports System.Data.OracleClient
Dim oOracleConn As OracleConnection = New OracleConnection()
oOracleConn.ConnectionString = "my connectionstring"
oOracleConn.Open() 
Data Shape 
MS Data Shape:
"Provider=MSDataShape.1;Persist Security Info=False;Data Provider=MSDAORA;Data Source=orac;user id=username;password=mypw"
例子1：namespace oracle
{
/// <summary>
/// WebForm1 的摘要说明。
/// </summary>
public class WebForm1 : System.Web.UI.Page
{
protected System.Web.UI.WebControls.DataGrid DataGrid1;
    private DataSet myDataSet = new DataSet();
private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面

string connstring="Provider=OraOLEDB.Oracle;Data Source=jtest;User Id=system;Password=manager;";
OleDbConnection conn=new OleDbConnection(connstring);
string strcom = "select * from system.LG_TASK_TABLE";
conn.Open();
OleDbDataAdapter mycommand = new OleDbDataAdapter(strcom,conn);
mycommand.Fill(myDataSet,"system.LG_TASK_TABLE");
DataGrid1.DataSource = myDataSet.Tables["system.LG_TASK_TABLE"].DefaultView;
DataGrid1.DataBind();
conn.Close();
}

Answer 1

服务器的IP是在oracle的客户端中设置的。连接oracle、Sql其实都没什么区别。
ConnectionString = @"Provider=" + Provider + 
";Password=" + Password + 
";Persist Security Info=True;User ID=" + UserID + 
";Data Source=" + DataSource;

Answer 2

数据库连接大全：http://blog.csdn.net/shoutor/archive/2004/07/26/52358.aspx

Answer 3

www.chinaaspx.com/archive/dotnet/3409.htm
www.chinaaspx.com/archive/dotnet/3410.htm
www.chinaaspx.com/archive/dotnet/3411.htm
www.chinaaspx.com/archive/dotnet/3412.htm
一个完整的例子

Answer 4

http://www.connectionstrings.com上面有连接字符串

Answer 5

OracleConnection oc=new OracleConnection("data source=ccserver;User Id=cym1;Password=cym");
OracleDataAdapter oda=new OracleDataAdapter("select id,name  from cym1.specialist where id<100",oc);
DataSet ds=new DataSet();
oda.Fill(ds);
comboBox1.DataSource=ds.Tables[0];
comboBox1.DisplayMember=ds.Tables[0].Columns[1].ColumnName;
comboBox1.ValueMember=ds.Tables[0].Columns[0].ColumnName;

Answer 6

http://dev.csdn.net/article/16/16437.shtm
http://www.connectionstrings.com/
http://community.csdn.net/Expert/TopicView3.asp?id=3705163