C# 对SqlServer数据库增删改查
Posted want_Success
tags:
篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了C# 对SqlServer数据库增删改查相关的知识,希望对你有一定的参考价值。
http://www.worlduc.com/blog2012.aspx?bid=730767
using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.Sql;
using System.Data.SqlClient;
namespace ConsoleApplication2
{
class Program
{
static void Main(string[] args)
{
while (true)
{
SqlConnection con = new SqlConnection();
con.ConnectionString = "server=505-03;database=ttt;user=sa;pwd=123";
con.Open();
SqlCommand cmd = new SqlCommand();
cmd.Connection = con;
string sql="";
Console.WriteLine("增加请输入1;删除请输入2;修改请输入3;查找请输入4");
int i = Convert.ToInt32(Console.ReadLine());
string str = "";
switch (i)
{
case 1:
sql = "insert into ";
Console.WriteLine("请输入你要修改的表");
str = Console.ReadLine();
sql += str + "(";
Console.WriteLine("请输入你要修改的列名,用逗号隔开");
str = Console.ReadLine();
sql += str + ")";
Console.WriteLine("请输入相应的数据,用逗号隔开");
str = Console.ReadLine();
sql += " values (" + str+")";
break;
case 2:
sql = "DELETE FROM ";
Console.WriteLine("请输入表名");
str = Console.ReadLine();
sql += str;
Console.WriteLine("请输入删除的条件");
str = Console.ReadLine();
sql += " where " + str;
break;
case 3:
sql = "UPDATE ";
Console.WriteLine("请输入表名");
str = Console.ReadLine();
sql += str + " set ";
Console.WriteLine("请输入要修改的数据,如money=0,多个用逗号隔开");
str = Console.ReadLine();
sql += str;
Console.WriteLine("请输入要修改的条件");
str = Console.ReadLine();
sql += " where " + str;
break;
case 4:
sql = "select ";
Console.WriteLine("请输入你要查询的列名,多个用逗号隔开");
str = Console.ReadLine();
sql += str;
Console.WriteLine("请输入你要查询的表名,多个用逗号隔开");
str = Console.ReadLine();
sql += " from " + str;
break;
}
cmd.CommandText = sql;
cmd.CommandType = CommandType.Text;
cmd.ExecuteNonQuery();
}
}
}
}
以上是关于C# 对SqlServer数据库增删改查的主要内容,如果未能解决你的问题,请参考以下文章
使用C#书写SQLite数据库增删改查语句(以及插入byte[]时遇到的问题总结)