如何连接到我的sql数据库 [英] How do I connect to my sql data base

问题描述

你好

我有一个带有这个app.config代码的项目：



add name =" connection string" connection String =" Server = .\SQLExpress;

AttachDbFilename = | Data Directory | \bonyad.mdf; Trusted_Connection = Yes;" providerName =" System.Data.SqlClient"



但是当有必要打开数据库时建立连接

出现此错误消息：

尝试为文件C附加自动命名的数据库：... \bin\Debug\bonyad.mdf失败。存在具有相同名称的数据库，或者无法打开指定的文件，或者它位于UNC共享上。



感谢您的帮助

hello
i have a project with this app.config code:

add name="connection string" connection String="Server=.\SQLExpress;
AttachDbFilename=|Data Directory|\bonyad.mdf;Trusted_Connection=Yes;" providerName="System.Data.SqlClient"

But when it is necessary to open the database connection is established
This error message appears:
An attempt to attach an auto-named database for file C:...\bin\Debug\bonyad.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.

Thanks for your help

推荐答案

使用此链接：



http://forum.codecall.net/topic/71422-connecting-to-a- mysql-database-in-c /

use this link:

http://forum.codecall.net/topic/71422-connecting-to-a-mysql-database-in-c/

您是否在Google上搜索此错误？

故障排除错误：尝试为文件'C：\附加自动命名的数据库数据库文件路径'失败。存在具有相同名称的数据库，或者无法打开指定的文件，或者它位于UNC共享上 [ ^ ]

Did you search Google for this error?
Troubleshoot Error: An attempt to attach an auto-named database for file 'C:\database file path' failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share[^]

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