摘要： 1..加入命名空间using System.Data.SqlClient;2.连接数据库SqlConnection myConnection = new SqlConnection();myConnection.ConnectionString = "user id=sa;password=sinofindb;initial catalog=test;data source=127.0.0.1;Connect Timeout=30";myConnection.Open();改进（更通用）的方法：string MySqlConnection="user id=sa; 阅读全文

摘要： 下面是代码：//首先添加两条引用using System.Data.OracleClient;using System.Data; private void oracle_dataset() { string ConnectionString = "Data Source=sky;user=system;password=manager;";//写连接串 OracleConnection conn = new OracleConnection(ConnectionString);//创建一个新连接 try { conn.Open(); OracleCommand cmd = 阅读全文