SQL Server
ODBC


Standard Security:

"Driver={SQL Server};Server=Aron1;Database=pubs;Uid=sa;Pwd=asdasd;"



Trusted connection:

"Driver={SQL Server};Server=Aron1;Database=pubs;Trusted_Connection=yes;"



Prompt for username and password:

oConn.Properties("Prompt") = adPromptAlways
oConn.Open "Driver={SQL Server};Server=Aron1;DataBase=pubs;"



OLE DB, OleDbConnection (.NET)


Standard Security:

"Provider=sqloledb;Data Source=Aron1;Initial Catalog=pubs;User Id=sa;Password=asdasd;"



Trusted Connection:

"Provider=sqloledb;Data Source=Aron1;Initial Catalog=pubs;Integrated Security=SSPI;"
(use serverName\instanceName as Data Source to use an specifik SQLServer instance, only SQLServer2000)
Prompt for username and password:

oConn.Provider = "sqloledb"
oConn.Properties("Prompt") = adPromptAlways
oConn.Open "Data Source=Aron1;Initial Catalog=pubs;"



Connect via an IP address:

"Provider=sqloledb;Data Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User ID=sa;Password=asdasd;"
(DBMSSOCN=TCP/IP instead of Named Pipes, at the end of the Data Source is the port to use (1433 is the default))
SqlConnection (.NET)


Standard Security:

"Data Source=Aron1;Initial Catalog=pubs;User Id=sa;Password=asdasd;"
- or -
"Server=Aron1;Database=pubs;User ID=sa;Password=asdasd;Trusted_Connection=False"
(booth connection strings produces the same result)




Trusted Connection:

"Data Source=Aron1;Initial Catalog=pubs;Integrated Security=SSPI;"
- or -
"Server=Aron1;Database=pubs;Trusted_Connection=True;"
(booth connection strings produces the same result)

(use serverName\instanceName as Data Source to use an specifik SQLServer instance, only SQLServer2000)
Connect via an IP address:

"Data Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User ID=sa;Password=asdasd;"
(DBMSSOCN=TCP/IP instead of Named Pipes, at the end of the Data Source is the port to use (1433 is the default))
Declare the SqlConnection:

C#:
using System.Data.SqlClient;
SqlConnection oSQLConn = new SqlConnection();
oSQLConn.ConnectionString="my connectionstring";
oSQLConn.Open();



VB.NET:
Imports System.Data.SqlClient
Dim oSQLConn As SqlConnection = New SqlConnection()
oSQLConn.ConnectionString="my connectionstring"
oSQLConn.Open()



Data Shape


MS Data Shape
"Provider=MSDataShape;Data Provider=SQLOLEDB;Data Source=Aron1;Initial Catalog=pubs;User ID=sa;Password=asdasd;"
Want to learn data shaping? Check out 4GuyfFromRolla's great article about Data Shaping >>
Read more


How to define which network protocol to use


Example:
"Provider=sqloledb;Data Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User ID=sa;Password=asdasd;"

Name Network library
dbnmpntw Win32 Named Pipes
dbmssocn Win32 Winsock TCP/IP
dbmsspxn Win32 SPX/IPX
dbmsvinn Win32 Banyan Vines
dbmsrpcn Win32 Multi-Protocol (Windows RPC)


Important note!
When connecting through the SQLOLEDB provider use the syntax Network Library=dbmssocn
and when connecting through MSDASQL provider use the syntax Network=dbmssocn


All SqlConnection connectionstring properties


This table shows all connectionstring properties for the ADO.NET SqlConnection object. Most of the properties are also used in ADO. A