sql插入数据

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Threading.Tasks;
 6 using System.Data.SqlClient;
 7 
 8 namespace sql插入数据
 9 {
10     class Program
11     {
12         static void Main(string[] args)
13         {
14             //数据库字符串
15             string str = "Data Source=.;Initial Catalog=mysql;Integrated Security=True";
16            //sql语句
17             string sql = "insert into student values(5,‘aaa‘,‘sss‘,‘ddd‘)";
18             //连接数据库
19             SqlConnection con = new SqlConnection(str);
20             con.Open();
21             //执行sql命令
22             SqlCommand cmd = new SqlCommand(sql,con);
23            //判断是否执行了sql
24             int n = -1;
25             n = cmd.ExecuteNonQuery();
26             if (n>0)
27             {
28                 Console.WriteLine("执行完毕！受影响行数为："+n);
29             }
30             else
31             {
32                 Console.WriteLine("执行失败！");
33             }
34             Console.ReadKey();
35             //关闭数据库
36             con.Dispose();
37             cmd.Dispose();
38         }
39     }
40 }