Oracle 10G的安裝請見上一篇文章,現在是安裝后測試一下連接的效果

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.OracleClient;

namespace Nhibernate1
{
??? public partial class FormOracle : Form
??? {
??????? private System.Data.OracleClient.OracleConnection con;
??????? private System.Data.OracleClient.OracleDataAdapter adapter;
??????? private System.Data.OracleClient.OracleCommand cmd;
??????? private System.Data.DataSet ds;

??????? public FormOracle()
??????? {
??????????? InitializeComponent();
??????? }

??????? private void FormOracle_Load(object sender, EventArgs e)
??????? {
??????????? openCon();
??????????? DataSet ds = GetDataSet(" select empno,ename,job from scott.emp");
??????????? this.dataGridView1.DataSource = ds.Tables[0];
??????? }

???????? private void openCon()
??????? {
???????????? try
???????????? {
???????????????? if (this.con == null)
???????????????? {
??????????????????? //使用using可以使該連接可以調用Dispose方法來釋放資源
??????????????????? //using (this.con = new OracleConnection())
??????????????????? //{
?????????????????????? this.con = new OracleConnection();
??????????????????????? //設置數據庫連接屬性為web.config中的設置的值(默認)
??????????????????????? //或者設置為構造函數中指定的connString的值
??????????????????????? this.con.ConnectionString
??????????????????????????? = "Data Source=orcl;User ID=scott;Password=tiger;Unicode=True";
??????????????????????? this.con.Open();
??????????????????? //}
??????????????????? System.Console.Write("數據庫連接成功!"); //Test
??????????????? }
??????????????? else if (con.State == ConnectionState.Closed)
??????????????? {
??????????????????? this.con.Open();
??????????????? }
??????????? }
??????????? catch
??????????? {
?????????????? System.Console.Write("數據庫連接失敗,請與管理員聯系!");
???????????????
??????????? }
??????? }

??????? public System.Data.DataSet GetDataSet(string sql)
??????? {
??????????? this.adapter = new OracleDataAdapter();
??????????? this.ds = new DataSet();
??????????? this.CreateCmd(sql);
??????????? this.adapter.SelectCommand = this.cmd;
??????????? this.adapter.Fill(this.ds);
??????????? return this.ds;
??????? }

??????? private void CreateCmd(string sql)
??????? {
??????????? //方法1
??????????? this.cmd = new OracleCommand();

??????????? this.cmd.Connection = this.con;
??????????? this.cmd.CommandText = sql;
????? }

??????? private void button1_Click(object sender, EventArgs e)
??????? {

??????? }

??? }
}

轉載于:https://www.cnblogs.com/meetweb/archive/2008/09/27/1300581.html

總結

以上是生活随笔為你收集整理的DotNet 连接 Oracle 10G数据库的测试的全部內容，希望文章能夠幫你解決所遇到的問題。

如果覺得生活随笔網站內容還不錯，歡迎將生活随笔推薦給好友。