MSSQL 2005 connection strings

[Rock]

SQL Server 2005

This is a compiled connection strings reference list on how to connect to SQL Server 2005.
SQL Native Client ODBC Driver

Standard security

Driver={SQL Native Client};Server=myServerAddress;Database=myDataBase ;Uid=myUsername;Pwd=myPassword;

If you are using SQL Server 2005 Express, don't miss the server name syntax Servername\SQLEXPRESS where you substitute Servername with the name of the computer where the SQL Server 2005 Express installation resides.

Trusted Connection

Driver={SQL Native Client};Server=myServerAddress;Database=myDataBase ;Trusted_Connection=yes;

Equivalent key-value pair: "Integrated Security=SSPI" equals "Trusted_Connection=yes"

Prompt for username and password
This one is a bit tricky. First you need to set the connection object's Prompt property to adPromptAlways. Then use the connection string to connect to the database.

oConn.Properties("Prompt") = adPromptAlways

Driver={SQL Native Client};Server=myServerAddress;Database=myDataBase ;

Enabling MARS (multiple active result sets)

Driver={SQL Native Client};Server=myServerAddress;Database=myDataBase ;Trusted_Connection=yes;MARS_Connection=yes;

Equivalent key-value pair: "MultipleActiveResultSets=true" equals "MARS_Connection=yes"
Use ADO.NET 2.0 for MARS functionality. MARS is not supported in ADO.NET 1.0 nor ADO.NET 1.1.

Encrypt data sent over network

Driver={SQL Native Client};Server=myServerAddress;Database=myDataBase ;Trusted_Connection=yes;Encrypt=yes;

Attach a database file on connect to a local SQL Server Express instance

Driver={SQL Native Client};Server=.\SQLExpress;AttachDbFilename=c:\ab c\xyz\mydbfile.mdf;Database=dbname;Trusted_Connect ion=Yes;

Why is the Database parameter needed? If the named database have already been attached, SQL Server does not reattach it. It uses the attached database as the default for the connection.

Attach a database file, located in the data directory, on connect to a local SQL Server Express instance

Driver={SQL Native Client};Server=.\SQLExpress;AttachDbFilename=|Data Directory|mydbfile.mdf;Database=dbname;Trusted_Con nection=Yes;

Why is the Database parameter needed? If the named database has already been attached, SQL Server does not reattach it. It uses the attached database as the default for the connection.

Database mirroring
If you connect with ADO.NET or the SQL Server Native Client to a database that is being mirrored, your application can take advantage of the drivers ability to automatically redirect connections when a database mirroring failover occurs. You must specify the initial principal server and database in the connection string and the failover partner server.

Data Source=myServerAddress;Failover Partner=myMirrorServer;Initial Catalog=myDataBase;Integrated Security=True;

There is ofcourse many other ways to write the connection string using database mirroring, this is just one example pointing out the failover functionality.

SQL Native Client OLE DB Provider

Standard security

Provider=SQLNCLI;Server=myServerAddress;Database=m yDataBase;Uid=myUsername;Pwd=myPassword;

Are you using SQL Server 2005 Express? Don't miss the server name syntax Servername\SQLEXPRESS where you substitute Servername with the name of the computer where the SQL Server 2005 Express installation resides.

Trusted connection

Provider=SQLNCLI;Server=myServerAddress;Database=m yDataBase;Trusted_Connection=yes;

Equivalent key-value pair: "Integrated Security=SSPI" equals "Trusted_Connection=yes"

Prompt for username and password
This one is a bit tricky. First you need to set the connection object's Prompt property to adPromptAlways. Then use the connection string to connect to the database.

oConn.Properties("Prompt") = adPromptAlways

oConn.Open "Provider=SQLNCLI;Server=myServerAddress;DataBase=m yDataBase;

Enabling MARS (multiple active result sets)

Provider=SQLNCLI;Server=myServerAddress;Database=m yDataBase;Trusted_Connection=yes;MarsConn=yes;

Equivalent key-value pair: "MultipleActiveResultSets=true" equals "MARS_Connection=yes"
Use ADO.NET 2.0 for MARS functionality. MARS is not supported in ADO.NET 1.0 nor ADO.NET 1.1.

Encrypt data sent over network

Provider=SQLNCLI;Server=myServerAddress;Database=m yDataBase;Trusted_Connection=yes;Encrypt=yes;

Attach a database file on connect to a local SQL Server Express instance

Provider=SQLNCLI;Server=.\SQLExpress;AttachDbFilen ame=c:\asd\qwe\mydbfile.mdf;Database=dbname;Truste d_Connection=Yes;

Why is the Database parameter needed? If the named database have already been attached, SQL Server does not reattach it. It uses the attached database as the default for the connection.

Attach a database file, located in the data directory, on connect to a local SQL Server Express instance

Provider=SQLNCLI;Server=.\SQLExpress;AttachDbFilen ame=|DataDirectory|mydbfile.mdf;Database=dbname;Tr usted_Connection=Yes;

Why is the Database parameter needed? If the named database have already been attached, SQL Server does not reattach it. It uses the attached database as the default for the connection.

Database mirroring
If you connect with ADO.NET or the SQL Server Native Client to a database that is being mirrored, your application can take advantage of the drivers ability to automatically redirect connections when a database mirroring failover occurs. You must specify the initial principal server and database in the connection string and the failover partner server.

Data Source=myServerAddress;Failover Partner=myMirrorServer;Initial Catalog=myDataBase;Integrated Security=True;

There are many other ways to write the connection string using database mirroring, this is just one example pointing out the failover functionality. You can combine this with the other connection strings options available.

Please refer the following URL for MSSQL 2000 connection strings: MSSQL 2000 connection strings

[Rock]

Hi... Update to the above post...

The following will help you in connecting to the MSSQL 2005 Database using ASP.Net.

SqlConnection (.NET)

Standard Security

Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword;

Use serverName\instanceName as Data Source to connect to a specific SQL Server instance.
If you are using SQL Server 2005 Express, don't miss the server name syntax Servername\SQLEXPRESS where you substitute Servername with the name of the computer where the SQL Server 2005 Express installation resides.

Standard Security alternative syntax
This connection string produce the same result as the previous one. The reason to include it is to point out that some connection string keywords have many equivalents.

Server=myServerAddress;Database=myDataBase;User ID=myUsername;Password=myPassword;Trusted_Connecti on=False;

Trusted Connection

Data Source=myServerAddress;Initial Catalog=myDataBase;Integrated Security=SSPI;

Trusted Connection alternative syntax
This connection string produce the same result as the previous one. The reason to include it is to point out that some connection string keywords have many equivalents.

Server=myServerAddress;Database=myDataBase;Trusted _Connection=True;

Connect via an IP address

Data Source=10.10.10.10,1433;Network Library=DBMSSOCN;Initial Catalog=myDataBase;User ID=myUsername;Password=myPassword;

DBMSSOCN=TCP/IP. This is how to use TCP/IP instead of Named Pipes. At the end of the Data Source is the port to use. 1433 is the default port for SQL Server.

Enabling MARS (multiple active result sets)

Server=myServerAddress;Database=myDataBase;Trusted _Connection=True;MultipleActiveResultSets=true;

Use ADO.NET 2.0 for MARS functionality. MARS is not supported in ADO.NET 1.0 nor ADO.NET 1.1.

Attach a database file on connect to a local SQL Server Express instance

Server=.\SQLExpress;AttachDbFilename=c:\abc\xyz\my dbfile.mdf;Database=dbname;Trusted_Connection=Yes;

Why is the Database parameter needed? If the named database have already been attached, SQL Server does not reattach it. It uses the attached database as the default for the connection.

Attach a database file, located in the data directory, on connect to a local SQL Server Express instance

Server=.\SQLExpress;AttachDbFilename=|DataDirector y|mydbfile.mdf;Database=dbname;Trusted_Connection= Yes;

Why is the Database parameter needed? If the named database have already been attached, SQL Server does not reattach it. It uses the attached database as the default for the connection.

Using an User Instance on a local SQL Server Express instance
The User Instance functionality creates a new SQL Server instance on the fly during connect. This works only on a local SQL Server 2005 instance and only when connecting using windows authentication over local named pipes. The purpose is to be able to create a full rights SQL Server instance to a user with limited administrative rights on the computer.

Data Source=.\SQLExpress;Integrated Security=true;AttachDbFilename=|DataDirectory|\myd b.mdf;User Instance=true;

To use the User Instance functionality you need to enable it on the SQL Server. This is done by executing the following command: sp_configure 'user instances enabled', '1'. To disable the functionality execute sp_configure 'user instances enabled', '0'.

Database mirroring
If you connect with ADO.NET or the SQL Server Native Client to a database that is being mirrored, your application can take advantage of the drivers ability to automatically redirect connections when a database mirroring failover occurs. You must specify the initial principal server and database in the connection string and the failover partner server.

Data Source=myServerAddress;Failover Partner=myMirrorServer;Initial Catalog=myDataBase;Integrated Security=True;

There is ofcourse many other ways to write the connection string using database mirroring, this is just one example pointing out the failover functionality. You can combine this with the other connection strings options available.


Asynchronous processing
A connection to SQL Server 2005 that allows for the issuing of async requests through ADO.NET objects.

Server=myServerAddress;Database=myDataBase;Integra ted Security=True;Asynchronous Processing=True;

Hope this'll help a lot of people in quickly getting their databases attached to their web-pages/scripts...

[Korbay]

Hi Rock,

I am new here and am loading a website hosting www.youbayou.info which uses a MS SQL Server express database. I use the following connection string:
"Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirector y|\YoubayouDB.mdf;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient"
which works fine on the development enviroment but uploaded it does not work and I have the following error:
" Failed to generate a user instance of SQL Server due to failure in retrieving the user's local application data path. Please make sure the user has a local user profile on the computer. The connection will be closed.
"

Can anyone helps me with this please?


Korbay

[Rock]

Korbay,

Your issue was fixed & replied in a different thread : MS SQL Server Express path
Let us know if you need any further help with anything else.

[prash]

Hi Rock,

I have just switched to this josting service. Today i tried to upload my database to server, but could not succeed. Please let me know the exact connection string. i am using following one




I shall be thank ful, if u please correct errors if any !

prash

[prash]

Hi rock
here is my connection string, which seems to be erroneous. Please correct and oblige.
Thanking you
prashant

connectionString="Data Source=87.117.238.85\SQLEXPRESS;Network Library=DBMSSOCN;Initial Catalog=xxxx_xxxx;User ID=xxxx_admin;Password=xxxx;"/>

[flesso]

Originally Posted by prash

Hi rock
here is my connection string, which seems to be errorneous. Please correct and oblige.
Thanking you
prashant

connectionString="Data Source=87.117.238.85\SQLEXPRESS;Network Library=DBMSSOCN;Initial Catalog=xxxx_xxxx;User ID=xxxx_admin;Password=xxxxx;"/>

Where are you adding this? By the look of the ending it looks as if it's in the web.config file. If it's in the web.config file it should be the following:

PHP Code:

 <add key="ConnectionString" value="Provider=sqloledb;Data Source=vaiolaptop\VSdotNET;Initial Catalog=example;User Id=example;Password=xxxx;" /> 


[prash]

hi,
Well i am doing it in asp.net 2.0
and i am trying to paste entire connection string code here, but this forum is not accepting.

[prash]

hi there

here is code that i am using in

add name="ImageGalleryConnectionString" connectionString="Data Source=87.117.238.85\SQLEXPRESS;Initial Catalog=xxxx_xxxx;User Id=xxxx_admin;Password=#xxxx#;"/>

Thanks

[flesso]

Originally Posted by prash

hi there

here is code that i am using in

add name="ImageGalleryConnectionString" connectionString="Data Source=87.117.238.85\SQLEXPRESS;Initial Catalog=xxxx_xxxe;User Id=xxxx_admin;Password=#xxxx#;"/>

Thanks

That's totally incorrect. Use the example I gave, by adding it to the web.config file of your app and then you should be getting somewhere.

[prash]

hi thanks for your reply and correction. what information should i provide for PROVIDER AND SOURCE.

i am using this address info [87.117.238.85\SQLEXPRESS ] to connect to management studio

provider and source

[flesso]

Originally Posted by prash

hi thanks for your reply and correction. what information should i provide for PROVIDER AND SOURCE.

i am using this address info [87.117.238.85\SQLEXPRESS ] to connect to management studio

provider and source

You need to change the following words/sections:

databse = Your database name.
dbusername = Your database username.
dbpass = Your database password.

That should get you going.

[prash]

hi there
it still is not working !!

here is my code of connection string. This should help u find, whats wrong. Please correct.

PHP Code:

<connectionStrings>
    <add key="ConnectionString" value="Provider=sqloledb;Data Source=vaiolaptop\VSdotNET;Initial Catalog=xxxx_xxxx;User Id=xxxx_admin;Password=#silsilay#;" />
    <add key="ConnectionString" value="Provider=sqloledb;Data Source=vaiolaptop\VSdotNET;Initial Catalog=xxxx_xxxx;User Id=xxxx_admin;Password=#silsilay#;" />
    <add key="ConnectionString" value="Provider=sqloledb;Data Source=vaiolaptop\VSdotNET;Initial Catalog=xxxx_xxe;User Id=xxxx_admin;Password=#xxxx#;" />
    
        
  </connectionStrings> 


[eUK-Martin]

Originally Posted by prash

hi there
it still is not working !!

here is my code of connection string. This should help u find, whats wrong. Please correct.

I would suggest you to please email us on windows [at] eukhost.com and we will take care of your issue.

Please include the affected domain name and database details.

[Rock]

Hi Prash,

Here are the changes that were into the web.config file that worked...

PHP Code:

<add name="ImageGalleryConnectionString" connectionString="Data Source=RxxxxR\SQLEXPRESS;Initial Catalog=xxxxxx;User ID=xxxxxx;Password=#xxxxx#" providerName="System.Data.SqlClient" /> 


[Paul Image-Machine]

My connection string is:

Data Source=91.186.30.8:8443\SQLEXPRESS;Initial Catalog=DivineDB;User Id=sa;Password=#password#;Persist Security Info=True;"
providerName="System.Data.SqlClient" />

but I get (having enabled debug mode):

"An error has occurred while establishing a connection to the server. When connecting to SQL Server 2005, this failure may be caused by the fact that under the default settings SQL Server does not allow remote connections. (provider: SQL Server Network Interfaces, error: 25 - Connection string is not valid)"

Which I guess means that I've got it wrong

The page I'm working on is: http://image-machine.com/content/gue...guestbook.aspx

Any clues, please?