如何只将选定的数据插入表? [英] How to insert only selected data to table?

查看:60
本文介绍了如何只将选定的数据插入表?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!

问题描述



我在sql中有一个表登录,它包含很多字段(例如fname,lname,Password,address,Username等)。我只需要向表中插入一些数据(用户名和密码)。我使用C#中的代码

 SqlCommand cmd =  new  SqlCommand( 插入登录值(@UserName),con); 
cmd.Parameters.AddWithValue( @ UserName,txtUserName.Text);
cmd.Parameters.AddWithValue( @ Password,txtPassword.Text);单击提交按钮



显示错误消息:

列名或提供的值数与表定义不匹配

请更正问题。

解决方案

您使用的SQL不正确,应该像下一个:

 SqlCommand cmd =  new  SqlCommand( 插入登录(用户名,密码)值(@UserName,@ Password),con); 


尝试这个..



如果您想插入特定列USE列名称





 SqlCommand cmd = new SqlCommand(  insert into login(Username,Password)值(@ UserName,@ Password),con); 
cmd.Parameters.AddWithValue( @ UserName,txtUserName。文本);
cmd.Parameters.AddWithValue( @ Password,txtPassword。文本);


如果您只想插入特定的列数据,那么您还必须在查询中写入它...



 SqlCommand cmd =  new  SqlCommand( 插入登录(用户名,密码)值(@ UserName,@ Password),con); 
cmd.Parameters.AddWithValue( @ UserName,txtUserName.Text);
cmd.Parameters.AddWithValue( @ Password,txtPassword.Text);


Hi,
I have a table login in sql it contains lots of fields(for example fname,lname,Password,address,Username etc). I need to insert some data only to the table(Username and Password). I use the code in C#

SqlCommand cmd = new SqlCommand("insert into login values(@UserName)", con);
          cmd.Parameters.AddWithValue("@UserName", txtUserName.Text);
          cmd.Parameters.AddWithValue("@Password", txtPassword.Text);


on clicking submit button it shows an error message:
"Column name or number of supplied values does not match table definition"
Please correct the problem.

解决方案

Your SQL used is incorrect, and should be like the next one:

SqlCommand cmd = new SqlCommand("insert into login (Username, Password) values(@UserName, @Password)", con);


Try this..

IF You want to insert specific columns USE Columns name


SqlCommand cmd = new SqlCommand("insert into login (Username, Password) values (@UserName,@Password)", con);
cmd.Parameters.AddWithValue("@UserName", txtUserName.Text);
cmd.Parameters.AddWithValue("@Password", txtPassword.Text);


IF You want to insert specific columns data only then you have to write it also in query like that...

SqlCommand cmd = new SqlCommand("insert into login (Username, Password) values (@UserName,@Password)", con);
cmd.Parameters.AddWithValue("@UserName", txtUserName.Text);
cmd.Parameters.AddWithValue("@Password", txtPassword.Text);


这篇关于如何只将选定的数据插入表?的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!

查看全文
登录 关闭
扫码关注1秒登录
发送“验证码”获取 | 15天全站免登陆