View source for Connection Strings

__FORCETOC__

Connection string examples.

==ASP.Net==

connection string examples for ASP.Net.

===SQL Server (MSSQL)===

SQL Server connection string examples.

====Basic connection string====

web.config:
 <configuration>
   <connectionStrings> 
     <add name="SQLServerConnection" connectionString="Server=myServerName;
     Database=myDatabaseName;User Id=myUsername;Password=myPassword;" />
   </connectionStrings>
 </configuration>
'''NOTE:''' Replace myServerName, myDatabaseName, myUsername, and myPassword with the correct details for your database.



How to create connection object in your code using the above connection string:
 System.Data.SqlClient.SqlConnection conn = new System.Data.SqlClient(System.Configuration.ConfigurationManager.ConnectionStrings
["SQLServerConnection"].ConnectionString);

====How to override default ASPNet Membership connection string====

web.config:
 <configuration>
   <connectionStrings>
     <remove name="LocalSQLServer" />
     <add name="LocalSQLServer" connectionString="Server=myServerName;Database=myDatabaseName;User Id=myUsername;Password=myPassword;" />
   </connectionStrings>
 </configuration>
'''NOTE:''' Replace myServerName, myDatabaseName, myUsername, and myPassword with the correct details for your database.  For overriding the default ASPNet Membership connection string, it is important that the connection string name be left as "LocalSQLServer".

===MySQL===

MySQL connection string example:

'''NOTE: This example requires the following library from mysql.com to be referenced in your project (also ensure that 'CopyLocal' is set to 'True' on the reference):'''
 http://dev.mysql.com/downloads/connector/net/

web.config:
 <configuration>
   <connectionStrings> 
     <add name="MySQLConnection" connectionString="Datasource=myServerName;Database=myDatabaseName;uid=myUsername;pwd=myPassword;" providerName="MySql.Data.MySqlClient"/>
   </connectionStrings>
 </configuration>
'''NOTE:''' Replace myServerName, myDatabaseName, myUsername, and myPassword with the correct details for your database.



How to create connection object in your code using the above connection string:
 MySql.Data.MySqlClient.MySqlConnection conn = new MySql.Data.MySqlClient.MySqlConnection(
    System.Configuration.ConfigurationManager.ConnectionStrings["MySQLConnection"].ConnectionString
 );



==Classic ASP==

Connection string examples for classic ASP.

===Access Database Connection String Examples===

====Using DSN-less method====
<pre>Conn.Open "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=d:\home\mysite.com\db\myfile.mdb;"</pre>

====Using DSN====
<pre>
Conn.Open "MyDSN"

Set Conn = CreateObject("ADODB.Connection")
Conn.Open "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=d:\home\mysite.com\db\myfile.mdb;"
</pre>


===MySQL Connection String (ASP)===
For newer versions of MySQL, use the below code.
<pre>
Dim conDB
Dim rs
'--Set the connection
Set conDB = CreateObject("ADODB.Connection")
'--You may need to use OPTION=3 instead of 16834
conDB.Open "DRIVER=MySQL ODBC 5.1 Driver;SERVER=mysql10.hostek.com;OPTION=16834;USER=db_un;Password=db_pw;DATABASE=db_name"
'--Set the recordset
Set rs = CreateObject("ADODB.Recordset")
</pre>

For older MySQL versions, you will want to use the below code.
<pre>
Dim conDB
Dim rs
'--Set the connection
Set conDB = CreateObject("ADODB.Connection")
'--You may need to use OPTION=3 instead of 16834
conDB.Open "DRIVER=MySQL ODBC 3.51 Driver;SERVER=mysql10.hostek.com;OPTION=16834;USER=db_un;Password=db_pw;DATABASE=db_name"
'--Set the recordset
Set rs = CreateObject("ADODB.Recordset")
</pre>

===MSSQL Connection String (ASP)===
<pre>
ConnStr="DRIVER={SQLServer};SERVER=sql1.hostek.com;UID=db_username;PWD=db_password;DATABASE=db_name"
Conn.open ConnStr
</pre>

Replace the username, password, and database name with the information for your database. 

[[Category:Databases-Access]]
[[Category:Databases-MySQL]]
[[Category:Databases-MSSQL]]