连接sql server、插入数据、从
数据库获取时间（C#）
using System;using System.Data.SqlClient;namespace Test{ //连接数据库 public class Connection { PRivate static string connectionString = "Server = 192.168.1.222;" + "Database = Test;" + "User ID = Test;" + "PassWord = abc123;"; /// <summary> /// 连接数据库 /// </summary> /// <returns></returns> private SqlConnection ConnectionOpen() { SqlConnection conn = new SqlConnection(connectionString); conn.Open(); return conn; } /// <summary> /// 向表(Table)中插入一条数据 /// </summary> public void Insert(string value1, string value2, string value3, DateTime dateTime) { SqlConnection conn = ConnectionOpen(); string sql = "insert into Table(row1, row2, row3, DateTime) values ('" + value1 + "', '" + value2 + "', '" + value3 + "', '" + dateTime + "')"; SqlCommand comm = new SqlCommand(sql, conn); comm.ExecuteReader(); conn.Close(); } /// <summary> /// 从数据库中获取当前时间 /// </summary> /// <returns></returns> public DateTime GetDateTimeFromSQL() { SqlConnection conn = ConnectionOpen(); string sql = "select getdate()"; SqlCommand comm = new SqlCommand(sql, conn); SqlDataReader reader = comm.ExecuteReader(); DateTime dt; if (reader.Read()) { dt = (DateTime)reader[0]; conn.Close(); return dt; } conn.Close(); return DateTime.MinValue; } }}
