Need connection string for SQL 2008.

Sheldon Livingston
Sheldon Livingston used Ask the Experts™
on
Hello all,

I need a connection string from c# to SQL server 2008.

The code below doesn't work.

Provider = SQLOLEDB; Server = ServerName; User id = UserName; Password = ThePassword; Database = TheDB

I get Invalid connection string attribute

I'm using ADODB.
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Bill PrewTest your restores, not your backups...
Top Expert 2016

Commented:
I forget exactly what 2008 needed, but try this newer syntax:

"Provider=SQLOLEDB;Data Source=serverName;Initial Catalog=databaseName;User ID=MyUserID;Password=MyPassword;"

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»bp
Sheldon LivingstonConsultant

Author

Commented:
Bill... I get the error that my server doesn't exist.
Bill PrewTest your restores, not your backups...
Top Expert 2016

Commented:
Are you able to connect to that server any other way from the client, via SQLCMD or SSMS, etc?


»bp
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Sheldon LivingstonConsultant

Author

Commented:
Via RDP.
Bill PrewTest your restores, not your backups...
Top Expert 2016

Commented:
Well, that's connecting to it as a RDP server, not a SQL Server database server.  It sounds like SQL Server may not be running there currently.


»bp
ǩa̹̼͍̓̂ͪͤͭ̓u͈̳̟͕̬ͩ͂̌͌̾̀ͪf̭̤͉̅̋͛͂̓͛̈m̩̘̱̃e͙̳͊̑̂ͦ̌ͯ̚d͋̋ͧ̑ͯ͛̉Glanced up at my screen and thought I had coded the Matrix...  Turns out, I just fell asleep on the keyboard.
Most Valuable Expert 2011
Top Expert 2015

Commented:
www.connectionstrings.com - The connection string bible as it were.

Specifically:  https://www.connectionstrings.com/sql-server-2008/
Qlemo"Batchelor", Developer and EE Topic Advisor
Top Expert 2015

Commented:
Make sure to not use spaces before =, and better not to do that after either.
Provider= SQLOLEDB; Server= ServerName; User id= UserName; Password= ThePassword; Database=TheDB

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should work - if you made sure you can connect to MSSQL from remote at all.
Sheldon LivingstonConsultant

Author

Commented:
This is a functioning SQL Server with web pages on it.
Bill PrewTest your restores, not your backups...
Top Expert 2016

Commented:
Just to be clear, web pages would come off of an IIS web server, not a SQL Server database server.

Both could be active on the same server, but just to clarify...


»bp
Sheldon LivingstonConsultant

Author

Commented:
Right... I have a webserver that has SQL on it.  What I'm trying to do is write a piece of software that monitors and email address.  Once it sees an email it will parse it and update some fields in a SQL database.

Currently the program can pull the email and parse it.

What I thought would be a no brainer (connecting to SQL) is the most difficult part.
Qlemo"Batchelor", Developer and EE Topic Advisor
Top Expert 2015

Commented:
Your software find runs on the server, or remote?
Sheldon LivingstonConsultant

Author

Commented:
Qlemo... I don't know what "Your software find on the server, or remote?" means.
Sam JacobsDirector of Technology Development, IPM

Commented:
Sheldon ... can you create a SQL Server ODBC connection to the SQL Server and see your databases in the wizard ?
ODBC-Connection.jpg
Sheldon LivingstonConsultant

Author

Commented:
Sam... I cannot.  Doesn't see the server:
ODBC
Sam JacobsDirector of Technology Development, IPM

Commented:
Ok ... that means that SQL is not listening for connections (or cannot resolve the name).
Can you connect via IP address?
Can you TELNET <ip address> 1433  (assuming you're using the default SQL port)?
If not, you might want to start by rebooting the server (if you haven't already).
Sheldon LivingstonConsultant

Author

Commented:
I can RDP via the IP address... the local IP address (non-routed 10.x)
I'll need to install Telnet later.
Server is working fine and not needing a reboot.  It is a webserver and is serving up pages fine.
Sam JacobsDirector of Technology Development, IPM

Commented:
As Bill mentioned earlier, IIS and SQL Server are different services (IIS listens on 800/443, and SQL listens on 1433), so just because one is working, doesn't mean that the other is.
If you RDP to the server, can you connect to the databases with SQL Server Management Studio?
Sheldon LivingstonConsultant

Author

Commented:
Yes I can connect to the server via RDP and the studio.  That is how I maintain it.
Director of Technology Development, IPM
Commented:
I would suggest installing TELNET on a PC and checking if you can TELNET via port 1433.
If you cannot, there may be a firewall blocking access.
Do you have Windows Firewall enabled on SQL Server?
It may not be configured to allow connections on port 1433 .
You might want to try turning it off temporarily to see if that makes a difference.
Sheldon LivingstonConsultant

Author

Commented:
So... I shut down the FW and could connect.  I then turned on the FW and made an inbound rule for 1433 and it worked.

Thank you Sam!
Sam JacobsDirector of Technology Development, IPM

Commented:
Cool ... I hate firewalls, but unfortunately, they are a necessary evil! :)
Sheldon LivingstonConsultant

Author

Commented:
Thanks again Sam!
Bill PrewTest your restores, not your backups...
Top Expert 2016

Commented:
Glad you got that resolved Sheldon, well done Sam.


»bp
Sam JacobsDirector of Technology Development, IPM

Commented:
@Sheldon ... you are most welcome.

@Bill ... Thanks.

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