SQL连接类
using System;
using System.Collections;
using System.Collections.Specialized;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.SqlClient;
using System.Configuration;
using System.Runtime.InteropServices;
using System.Windows.Forms;
namespace DAL
{
public class DataControl
{
public static string connectionString = "server=" + SystemSet.getServerSet_ServerIP() + ";uid=" + SystemSet.getServerSet_ServerUser() + ";pwd=" + SystemSet.getServerSet_ServerPass() + ";database=" + SystemSet.getServerSet_ServerDataBase() + "";
/// <summary>
/// 初始化 /// </summary>
public DataControl()
{
}
/// <summary>
/// 无参数，测试数据库连接是否设置合理。 /// </summary>
/// <returns>是否连接成功</returns>
public static bool checkconn()
{
try
{
SqlConnection conn = new SqlConnection(connectionString);
conn.Open();
return true;
}
&
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1、包规范（Package Specification）
包规范，也叫做包头，包含了有关包的内容的信息。但是，它不包含任何过程的代码。
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oracle 方法 & ......
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