Database connection error.

Question

4.00/5 (1 vote)

See more:

I am a beginer for ms sql server. Please help me to solve this problem.
My connection string is:

@"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\dbInventory.mdf;Integrated Security=True;User Instance=True"

but error occur while opening connection

[System.Data.SqlClient.SqlException] = { "An attempt to attach an auto-named database for file C:\\Inventory\\bin\\Debug\\dbInventory.mdf failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share." }

Posted 10-Feb-10 1:11am

Yogesh M Patil

Updated 10-Feb-10 6:22am

Toli Cuturicu

v2

Add a Solution

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Eddy Vluggen · Answer 1 · 2010-02-10T02:40:00

It's not a UNC path, and the file will probably exist, leaving one option to verify;

Open SQL Management Studio and check whether there's a database in there with the name. SQL Server can't have two databases that share the same name.

Some background information;

You can "register" a database-file (*.mdf) in SQL Server, that usually referred to as "attaching" the database. The file is then addressed over an alias. This way SQL Server knows where the files are.

You can also connect to a database-file directly, without explicitly attaching it. That's what the part "AttachDbFilename[^]" does.