| SQL Server 2005 |
| SQL Native Client ODBC Driver |
| 标准安全 |
" Driver={SQL Native Client}; Server=Aron1; Database=pubs; UID=sa; PWD=asdasd; " |
| 信任的连接 |
" Driver={SQL Native Client}; Server=Aron1; Database=pubs; Trusted_Connection=yes; "
Equivalents
Integrated Security=SSPI equals Trusted_Connection=yes |
| 提示输入用户名和密码 |
oConn.Properties(" Prompt" ) = adPromptAlways
oConn.Open " Driver={SQL Native Client}; Server=Aron1; DataBase=pubs; " |
| 授权的MARS(多重活动结果集) |
" Driver={SQL Native Client}; Server=Aron1; Database=pubs; Trusted_Connection=yes; MARS_Connection=yes"
Equivalents
MultipleActiveResultSets=true equals MARS_Connection=yes |
| 加密数据网络传输 |
" Driver={SQL Native Client}; Server=Aron1; Database=pubs; Trusted_Connection=yes; Encrypt=yes" |
| 在本地SQL服务器实例附加数据库文件 |
" Driver={SQL Native Client}; Server=.\SQLExpress; AttachDbFilename=c:\asd\qwe\mydbfile.mdf; Database=dbname; Trusted_Connection=Yes; "
- or -
" Driver={SQL Native Client}; Server=.\SQLExpress; AttachDbFilename=|DataDirectory|mydbfile.mdf; Database=dbname; Trusted_Connection=Yes; "
(use |DataDirectory| when your database file resides in the data directory) |
| SQL Native Client OLE DB Provider |
| 标准安全 |
" Provider=SQLNCLI; Server=Aron1; Database=pubs; UID=sa; PWD=asdasd; " |
| 信任的连接 |
" Provider=SQLNCLI; Server=Aron1; Database=pubs; Trusted_Connection=yes; "
Equivalents
Integrated Security=SSPI equals Trusted_Connection=yes |
| 提示输入用户名和密码 |
oConn.Properties(" Prompt" ) = adPromptAlways
oConn.Open " Provider=SQLNCLI; Server=Aron1; DataBase=pubs; " |
| 授权的MARS(多重活动结果集) |
" Provider=SQLNCLI; Server=Aron1; Database=pubs; Trusted_Connection=yes; MarsConn=yes"
Equivalents
MarsConn=yes equals MultipleActiveResultSets=true equals MARS_Connection=yes |
| 加密数据网络传输 |
" Provider=SQLNCLI; Server=Aron1; Database=pubs; Trusted_Connection=yes; Encrypt=yes" |
| 在本地SQL服务器实例附加数据库文件 |
" Provider=SQLNCLI; Server=.\SQLExpress; AttachDbFilename=c:\asd\qwe\mydbfile.mdf; Database=dbname; Trusted_Connection=Yes; "
- or -
" Provider=SQLNCLI; Server=.\SQLExpress; AttachDbFilename=|DataDirectory|mydbfile.mdf; Database=dbname; Trusted_Connection=Yes; "
(use |DataDirectory| when your database file resides in the data directory) |
| SqlConnection (.NET) |
| 标准安全 |
" Data Source=Aron1; Initial Catalog=pubs; User Id=sa; Password=asdasd; "
- or -
" Server=Aron1; Database=pubs; User ID=sa; Password=asdasd; Trusted_Connection=False"
(both connection strings produces the same result) |
| 信任的连接 |
" Data Source=Aron1; Initial Catalog=pubs; Integrated Security=SSPI; "
- or -
" Server=Aron1; Database=pubs; Trusted_Connection=True; "
(both connection strings produces the same result) |
| IP地址连接管道 |
" 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)) |
| 授权的MARS(多重活动结果集) |
" Server=Aron1; Database=pubs; Trusted_Connection=True; MultipleActiveResultSets=true"
Note! Use ADO.NET 2.0 for MARS functionality. MARS is not supported in ADO.NET 1.0 nor ADO.NET 1.1 |
| 在本地SQL服务器实例附加数据库文件 |
" Server=.\SQLExpress; AttachDbFilename=c:\asd\qwe\mydbfile.mdf; Database=dbname; Database=dbname; Trusted_Connection=Yes; "
- or -
" Server=.\SQLExpress; AttachDbFilename=|DataDirectory|mydbfile.mdf; Database=dbname; Trusted_Connection=Yes; " |
| Using " User Instance" on a local SQL Server Express instance |
" Data Source=.\SQLExpress; integrated security=true; attachdbfilename=|DataDirectory|\mydb.mdf; user instance=true; "
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. To enable the functionality: sp_configure 'user instances enabled','1' (0 to disable)
Using SQL Server 2005 Express? Don't miss the server name syntax: SERVERNAME\SQLEXPRESS (Substitute " SERVERNAME" with the name of the computer)
Context Connection - connecting to " self" from within your CLR stored prodedure/function |
| Context Connection - connecting to " self" from within your CLR stored prodedure/function |
| C# |
using(SqlConnection connection = new SqlConnection("context connection=true"))
{
connection.Open();
// Use the connection
} |
| Visual Basic |
Using connection as new SqlConnection("context connection=true")
connection.Open()
' Use the connection
End Using |
| Read more |
| When to use SQL Native Client? |
.Net applications
Do not use the SQL Native Client. Use the .NET Framework Data Provider for SQL Server (SqlConnection).
COM applications, all other then .Net applications |
COM applications, all other then .Net applications
Use the SQL Native Client if you are accessing an SQL Server 2005 and need the new features of SQL Server 2005 such as MARS, encryption, XML data type etc. Continue use your current provider (OLE DB / ODBC through the MDAC package) if you are not connecting
to an SQL Server 2005 (that's quite obvious eh..) or if you are connecting to an SQL Server 2005 but are not using any of the new SQL Server 2005 features. |