微软提供的四种数据库连接方式：
System.Data.OleDb.OleDbConnection
System.Data.SqlClient.SqlConnection
System.Data.Odbc.OdbcConnection
System.Data.OracleClient.OracleConnection
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名称
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ADO.NET连接字符串
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说明
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ADO.NET连接字符串：SQL Server，SQL Server 2005，ACCESS，Oracle，MySQL，Interbase，IBM DB2，Sybase，Informix，Ingres，Mimer SQL，Lightbase，PostgreSQL，Paradox，DNS，Firebird，Excel ，Text，DBF / FoxPro，AS/400 (iSeries)，Exchange，Visual FoxPro，Pervasive，UDL。
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1 - SQL Server
2 - SQL Server 2005
3 - ACCESS, Oracle
4 - MySQL, Interbase, IBM DB2
5 - Sybase, Informix, Ingres, Mimer SQL, Lightbase, PostgreSQL, Paradox, DNS
6 - Firebird, Excel , Text, DBF / FoxPro, AS/400 (iSeries), Exchange, Visual FoxPro, Pervasive, UDL
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1
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SQL Server
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ODBC
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标准安全
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" Driver={SQL Server}; Server=Aron1; Database=pubs; Uid=sa; Pwd=asdasd; "
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信任的连接
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" Driver={SQL Server}; Server=Aron1; Database=pubs; Trusted_Connection=yes; "
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提示输入用户名和密码
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oConn.Properties(" Prompt" ) = adPromptAlways
oConn.Open " Driver={SQL Server}; Server=Aron1; DataBase=pubs; "
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OLE DB, OleDbConnection (.NET)
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标准安全
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" Provider=sqloledb; Data Source=Aron1; Initial Catalog=pubs; User Id=sa; Password=asdasd; "
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信任的连接
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" Provider=sqloledb; Data Source=Aron1; Initial Catalog=pubs; Integrated Security=SSPI; "
(use serverNameinstanceName as Data Source to use an specifik SQLServer instance, only SQLServer2000)
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提示输入用户名和密码
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oConn.Provider = " sqloledb"
oConn.Properties(" Prompt" ) = adPromptAlways
oConn.Open " Data Source=Aron1; Initial Catalog=pubs; "
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IP地址连接管道
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" 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))
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SqlConnection (.NET)
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标准安全
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" 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)
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信任的连接
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" Data Source=Aron1; Initial Catalog=pubs; Integrated Security=SSPI; "
- or -
" Server=Aron1; Database=pubs; Trusted_Connection=True; "
(both connection strings produces the same result)
(use serverNameinstanceName as Data Source to use an specifik SQLServer instance, only SQLServer2000)
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IP地址连接管道
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" 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))
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定义SqlConnection对象
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C#:
using System.Data.SqlClient;
SqlConnection oSQLConn = new SqlConnection();
oSQLConn.ConnectionString=" my connection string" ;
oSQLConn.Open();
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VB.NET:
Imports System.Data.SqlClient
Dim oSQLConn As SqlConnection = New SqlConnection()
oSQLConn.ConnectionString=" my connection string"
oSQLConn.Open()
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Data Shape
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MS Data Shape
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" Provider=MSDataShape; Data Provider=SQLOLEDB; Data Source=Aron1; Initial Catalog=pubs; User ID=sa; Password=asdasd; "
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2
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SQL Server 2005
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SQL Native Client ODBC Driver
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标准安全
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" Driver={SQL Native Client}; Server=Aron1; Database=pubs; UID=sa; PWD=asdasd; "
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信任的连接
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" Driver={SQL Native Client}; Server=Aron1; Database=pubs; Trusted_Connection=yes; "
Equivalents
Integrated Security=SSPI equals Trusted_Connection=yes
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提示输入用户名和密码
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oConn.Properties(" Prompt" ) = adPromptAlways
oConn.Open " Driver={SQL Native Client}; Server=Aron1; DataBase=pubs; "
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授权的MARS(多重活动结果集)
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" Driver={SQL Native Client}; Server=Aron1; Database=pubs; Trusted_Connection=yes; MARS_Connection=yes"
Equivalents
MultipleActiveResultSets=true equals MARS_Connection=yes
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加密数据网络传输
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" Driver={SQL Native Client}; Server=Aron1; Database=pubs; Trusted_Connection=yes; Encrypt=yes"
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在本地SQL服务器实例附加数据库文件
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" Driver={SQL Native Client}; Server=.SQLExpress; AttachDbFilename=c:asdqwemydbfile.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)
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SQL Native Client OLE DB Provider
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标准安全
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" Provider=SQLNCLI; Server=Aron1; Database=pubs; UID=sa; PWD=asdasd; "
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信任的连接
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" Provider=SQLNCLI; Server=Aron1; Database=pubs; Trusted_Connection=yes; "
Equivalents
Integrated Security=SSPI equals Trusted_Connection=yes
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提示输入用户名和密码
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oConn.Properties(" Prompt" ) = adPromptAlways
oConn.Open " Provider=SQLNCLI; Server=Aron1; DataBase=pubs; "
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授权的MARS(多重活动结果集)
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" Provider=SQLNCLI; Server=Aron1; Database=pubs; Trusted_Connection=yes; MarsConn=yes"
Equivalents
MarsConn=yes equals MultipleActiveResultSets=true equals MARS_Connection=yes
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加密数据网络传输
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" Provider=SQLNCLI; Server=Aron1; Database=pubs; Trusted_Connection=yes; Encrypt=yes"
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在本地SQL服务器实例附加数据库文件
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" Provider=SQLNCLI; Server=.SQLExpress; AttachDbFilename=c:asdqwemydbfile.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)
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SqlConnection (.NET)
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标准安全
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" 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)
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信任的连接
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" Data Source=Aron1; Initial Catalog=pubs; Integrated Security=SSPI; "
- or -
" Server=Aron1; Database=pubs; Trusted_Connection=True; "
(both connection strings produces the same result)
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IP地址连接管道
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" 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))
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授权的MARS(多重活动结果集)
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" 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
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在本地SQL服务器实例附加数据库文件
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" Server=.SQLExpress; AttachDbFilename=c:asdqwemydbfile.mdf; Database=dbname; Database=dbname; Trusted_Connection=Yes; "
- or -
" Server=.SQLExpress; AttachDbFilename=|DataDirectory|mydbfile.mdf; Database=dbname; Trusted_Connection=Yes; "
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Using " User Instance" on a local SQL Server Express instance
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" 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: SERVERNAMESQLEXPRESS (Substitute " SERVERNAME" with the name of the computer)
Context Connection - connecting to " self" from within your CLR stored prodedure/function
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Context Connection - connecting to " self" from within your CLR stored prodedure/function
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C#
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using(SqlConnection connection = new SqlConnection("context connection=true"))
{
connection.Open();
// Use the connection
}
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Visual Basic
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Using connection as new SqlConnection("context connection=true")
connection.Open()
' Use the connection
End Using
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Read more
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When to use SQL Native Client?
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.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
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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.
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3
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ACCESS
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ODBC
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标准安全
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"Driver={Microsoft Access Driver (*.mdb)}; Dbq=C:mydatabase.mdb; Uid=Admin; Pwd=; "
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工作组
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"Driver={Microsoft Access Driver (*.mdb)}; Dbq=C:mydatabase.mdb; SystemDB=C:mydatabase.mdw; "
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独占
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"Driver={Microsoft Access Driver (*.mdb)}; Dbq=C:mydatabase.mdb; Exclusive=1; Uid=admin; Pwd="
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OLE DB, OleDbConnection (.NET)
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标准安全
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"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=somepathmydb.mdb; User Id=admin; Password=; "
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工作组 (system database)
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"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=somepathmydb.mdb; Jet OLEDB:System Database=system.mdw; "
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使用密码
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"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=somepathmydb.mdb; Jet OLEDB:Database Password=MyDbPassword; "
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Oracle
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ODBC
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新版本
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"Driver={Microsoft ODBC for Oracle}; Server=OracleServer.world; Uid=Username; Pwd=asdasd; "
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旧版本
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"Driver={Microsoft ODBC Driver for Oracle}; ConnectString=OracleServer.world; Uid=myUsername; Pwd=myPassword; "
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OLE DB, OleDbConnection (.NET)
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标准安全
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"Provider=msdaora; Data Source=MyOracleDB; User Id=UserName; Password=asdasd; "
This one's from Microsoft, the following are from Oracle
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标准安全
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"Provider=OraOLEDB.Oracle; Data Source=MyOracleDB; User Id=Username; Password=asdasd; "
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信任的连接
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"Provider=OraOLEDB.Oracle; Data Source=MyOracleDB; OSAuthent=1; "
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OracleConnection (.NET)
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标准
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"Data Source=MyOracleDB; Integrated Security=yes; "
This one works only with Oracle 8i release 3 or later
10g及以上:
"Data Source=MyOracleDB; User Id=UserName; Password=asdasd;"
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指定用户名和密码
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"Data Source=MyOracleDB; User Id=username; Password=passwd; Integrated Security=no; "
This one works only with Oracle 8i release 3 or later
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定义OracleConnection对象
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C#:
using System.Data.OracleClient;
OracleConnection oOracleConn = new OracleConnection();
oOracleConn.ConnectionString = "my connection string";
oOracleConn.Open();
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VB.NET:
Imports System.Data.OracleClient
Dim oOracleConn As OracleConnection = New OracleConnection()
oOracleConn.ConnectionString = "my connection string"
oOracleConn.Open()
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Core Labs OraDirect (.NET)
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标准
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"User ID=scott; Password=tiger; Host=ora; Pooling=true; Min Pool Size=0; Max Pool Size=100; Connection Lifetime=0"
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Data Shape
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微软数据模型
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"Provider=MSDataShape.1; Persist Security Info=False; Data Provider=MSDAORA; Data Source=orac; user id=username; password=mypw"
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4
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MySQL
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MyODBC
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MyODBC 2.50 本地数据库
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"Driver={mySQL}; Server=localhost; Option=16834; Database=mydatabase; "
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MyODBC 2.50 远程数据库:
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"Driver={mySQL}; Server=data.domain.com; Port=3306; Option=131072; Stmt=; Database=my-database; Uid=username; Pwd=password; "
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MyODBC 3.51 本地数据库
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"DRIVER={MySQL ODBC 3.51 Driver}; SERVER=localhost; DATABASE=myDatabase; USER=myUsername; PASSWORD=myPassword; OPTION=3; "
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MyODBC 3.51 远程数据库
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"DRIVER={MySQL ODBC 3.51 Driver}; SERVER=data.domain.com; PORT=3306; DATABASE=myDatabase; USER=myUsername; PASSWORD=myPassword; OPTION=3; "
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OLE DB, OleDbConnection (.NET)
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标准
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"Provider=MySQLProv; Data Source=mydb; User Id=UserName; Password=asdasd; "
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Connector/Net 1.0 (.NET)
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标准
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"Server=Server; Database=Test; Uid=UserName; Pwd=asdasd; "
Download the driver at MySQL Developer Zone
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指定端口
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"Server=Server; Port=1234; Database=Test; Uid=UserName; Pwd=asdasd; "
Default port is 3306. Enter value -1 to use a named pipe connection.
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定义mysqlclient 连接对象
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C#:
using MySql.Data.MySqlClient;
MySqlConnection oMySqlConn = new MySqlConnection();
oMySqlConn.ConnectionString = "Server=Server; Database=Test; Uid=UserName; Pwd=asdasd; ";
oMySqlConn.Open();
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VB.NET:
Imports MySql.Data.MySqlClient
Dim oMySqlConn As MySqlConnection = New MySqlConnection()
oMySqlConn.ConnectionString = "Server=Server; Database=Test; Uid=UserName; Pwd=asdasd; "
oMySqlConn.Open()
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MySqlConnection (.NET)
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eInfoDesigns.dbProvider
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"Data Source=server; Database=mydb; User ID=username; Password=pwd; Command Logging=false"
This one is used with eInfoDesigns dbProvider, an add-on to .NET
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定义MySqlConnection连接对象
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C#:
using eInfoDesigns.dbProvider.MySqlClient;
MySqlConnection oMySqlConn = new MySqlConnection();
oMySqlConn.ConnectionString = "my connection string";
oMySqlConn.Open();
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VB.NET:
Imports eInfoDesigns.dbProvider.MySqlClient
Dim oMySqlConn As MySqlConnection = New MySqlConnection()
oMySqlConn.ConnectionString = "my connection string"
oMySqlConn.Open()
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SevenObjects MySqlClient (.NET)
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标准
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"Host=server; UserName=myusername; Password=mypassword; Database=mydb; "
This is a freeware ADO.Net data provider from SevenObjects
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Core Labs MySQLDirect (.NET)
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标准
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"User ID=root; Password=pwd; Host=localhost; Port=3306; Database=test; Direct=true; Protocol=TCP; Compress=false; Pooling=true; Min Pool Size=0; Max Pool Size=100; Connection Lifetime=0"
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Interbase
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ODBC, Easysoft
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本地计算机
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"Driver={Easysoft IB6 ODBC}; Server=localhost; Database=localhost:C:mydatabase.gdb; Uid=username; Pwd=password"
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远程计算机
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"Driver={Easysoft IB6 ODBC}; Server=ComputerName; Database=ComputerName:C:mydatabase.gdb; Uid=username; Pwd=password"
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ODBC, Intersolv
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本地计算机
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"Driver={INTERSOLV InterBase ODBC Driver (*.gdb)}; Server=localhost; Database=localhost:C:mydatabase.gdb; Uid=username; Pwd=password"
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远程计算机
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"Driver={INTERSOLV InterBase ODBC Driver (*.gdb)}; Server=ComputerName; Database=ComputerName:C:mydatabase.gdb; Uid=username; Pwd=password"
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OLE DB, SIBPROvider
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标准
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"provider=sibprovider; location=localhost:; data source=c:databasesgdbsmygdb.gdb; user id=SYSDBA; password=masterkey"
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指定字符集
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"provider=sibprovider; location=localhost:; data source=c:databasesgdbsmygdb.gdb; user id=SYSDBA; password=masterkey; character set=ISO8859_1"
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指定规则
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"provider=sibprovider; location=localhost:; data source=c:databasesgdbsmygdb.gdb; user id=SYSDBA; password=masterkey; role=DIGITADORES"
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IBM DB2
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OLE DB, OleDbConnection (.NET) from ms
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TCP/IP
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"Provider=DB2OLEDB; Network Transport Library=TCPIP; Network Address=XXX.XXX.XXX.XXX; Initial Catalog=MyCtlg; Package Collection=MyPkgCol; Default Schema=Schema; User ID=MyUser; Password=MyPW"
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APPC
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"Provider=DB2OLEDB; APPC Local LU Alias=MyAlias; APPC Remote LU Alias=MyRemote; Initial Catalog=MyCtlg; Package Collection=MyPkgCol; Default Schema=Schema; User ID=MyUser; Password=MyPW"
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IBM's OLE DB Provider (shipped with IBM DB2 UDB v7 or above)
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TCP/IP
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"Provider=IBMDADB2; Database=sample; HOSTNAME=db2host; PROTOCOL=TCPIP; PORT=50000; uid=myUserName; pwd=myPwd;"
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ODBC
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标准
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"driver={IBM DB2 ODBC DRIVER}; Database=myDbName; hostname=myServerName; port=myPortNum; protocol=TCPIP; uid=myUserName; pwd=myPwd"
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5
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Sybase
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ODBC
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标准 Sybase System 12 (or 12.5) Enterprise Open Client
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"Driver={SYBASE ASE ODBC Driver}; Srvr=Aron1; Uid=username; Pwd=password"
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标准 Sybase System 11
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"Driver={SYBASE SYSTEM 11}; Srvr=Aron1; Uid=username; Pwd=password; Database=mydb"
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Intersolv 3.10
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"Driver={INTERSOLV 3.10 32-BIT Sybase}; Srvr=Aron1; Uid=username; Pwd=password;"
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Sybase SQL Anywhere (former Watcom SQL ODBC driver)
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"ODBC; Driver=Sybase SQL Anywhere 5.0; DefaultDir=c:dbfolder; Dbf=c:mydatabase.db; Uid=username; Pwd=password; Dsn="""""
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OLE DB
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Adaptive Server Anywhere (ASA)
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"Provider=ASAProv; Data source=myASA"
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Adaptive Server Enterprise (ASE) with Data Source .IDS file
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"Provider=Sybase ASE OLE DB Provider; Data source=myASE"
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Adaptive Server Enterprise (ASE)
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"Provider=Sybase.ASEOLEDBProvider; Srvr=myASEserver,5000; Catalog=myDBname; User Id=username; Password=password"
- some reports on problem using the above one, try the following as an alternative -
"Provider=Sybase.ASEOLEDBProvider; Server Name=myASEserver,5000; Initial Catalog=myDBname; User Id=username; Password=password"
This one works only from Open Client 12.5 where the server port number feature works,following fully qualified connection strings to be used without definingfony .IDS Data Source files.
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AseConnection (.NET)
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标准
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"Data Source='myASEserver'; Port=5000; Database='myDBname'; UID='username'; PWD='password'; "
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定义AseConnection连接对象
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C#:
using Sybase.Data.AseClient;
AseConnection oCon = new AseConnection();
oCon.ConnectionString="my connection string";
oCon.Open();
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VB.NET:
Imports System.Data.AseClient
Dim oCon As AseConnection = New AseConnection()
oCon.ConnectionString="my connection string"
oCon.Open()
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Informix
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ODBC
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Informix 3.30
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"Dsn=''; Driver={INFORMIX 3.30 32 BIT}; Host=hostname; Server=myserver; Service=service-name; Protocol=olsoctcp; Database=mydb; UID=username; PWD=myPwd"
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Informix-CLI 2.5
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"Driver={Informix-CLI 2.5 (32 Bit)}; Server=myserver; Database=mydb; Uid=username; Pwd=myPwd"
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OLE DB
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IBM Informix OLE DB Provider
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"Provider=Ifxoledbc.2; password=myPw; User ID=myUser; Data Source=dbName@serverName; Persist Security Info=true"
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Ingres
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ODBC
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DSN-less
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"Provider=MSDASQL.1; DRIVER=Ingres; SRVR=xxxxx; DB=xxxxx; Persist Security Info=False; uid=xxxx; pwd=xxxxx; SELECTLOOPS=N; Extended Properties="""SERVER=xxxxx; DATABASE=xxxxx; SERVERTYPE=INGRES""
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Mimer SQL
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ODBC
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标准安全
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"Driver={MIMER}; Database=mydb; Uid=myuser; Pwd=mypw; "
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提示输入用户名和密码
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"Driver={MIMER}; Database=mydb;"
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Lightbase
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标准
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标准
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"user=USERLOGIN; password=PASSWORD; UDB=USERBASE; server=SERVERNAME"
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PostgreSQL
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Core Labs PostgreSQLDirect (.NET)
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标准
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"User ID=root; Password=pwd; Host=localhost; Port=5432; Database=testdb; Pooling=true; Min Pool Size=0; Max Pool Size=100; Connection Lifetime=0"
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PostgreSQL driver
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标准
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"DRIVER={PostgreSQL}; SERVER=ipaddress; port=5432; DATABASE=dbname; UID=username; PWD=password; "
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Npgsql by pgFoundry (.NET)
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SSL activated
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"Server=127.0.0.1; Port=5432; Userid=myuserid; password=mypw; Protocol=3; SSL=true; Pooling=true; MinPoolSize=3; MaxPoolSize=20; Encoding=UNICODE; Timeout=20; SslMode=Require"
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Without SSL
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"Server=127.0.0.1; Port=5432; Userid=myuserid; password=mypw; Protocol=3; SSL=false; Pooling=true; MinPoolSize=1; MaxPoolSize=20; Encoding=UNICODE; Timeout=15; SslMode=Disable"
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Paradox
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ODBC
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5.X
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"Driver={Microsoft Paradox Driver (*.db )}; DriverID=538; Fil=Paradox 5.X; DefaultDir=c:pathToDb; Dbq=c:pathToDb; CollatingSequence=ASCII"
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7.X
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"Provider=MSDASQL.1; Persist Security Info=False; Mode=Read; Extended Properties='DSN=Paradox; DBQ=C:myDb; DefaultDir=C:myDb; DriverId=538; FIL=Paradox 7.X; MaxBufferSize=2048; PageTimeout=600; '; Initial Catalog=C:myDb"
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OleDbConnection (.NET)
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标准
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"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=c:myDb; Extended Properties=Paradox 5.x;"
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DNS
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ODBC
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DSN
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"DSN=myDsn; Uid=username; Pwd=; "
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File DSN
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"FILEDSN=c:myData.dsn; Uid=username; Pwd=;"
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6
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Firebird
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ODBC - IBPhoenix Open Source
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标准
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"DRIVER=Firebird/InterBase(r) driver; UID=SYSDBA; PWD=masterkey; DBNAME=D:FIREBIRDexamplesTEST.FDB"
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.NET - Firebird .Net Data Provider
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标准
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"User=SYSDBA; Password=masterkey; Database=SampleDatabase.fdb; DataSource=localhost; Port=3050; Dialect=3; Charset=NONE; Role=; Connection lifetime=15; Pooling=true; MinPoolSize=0; MaxPoolSize=50; Packet Size=8192; ServerType=0"
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Excel
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ODBC
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标准
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"Driver={Microsoft Excel Driver (*.xls)}; DriverId=790; Dbq=C:MyExcel.xls; DefaultDir=c:mypath; "
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OLE DB
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标准
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"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=C:MyExcel.xls; Extended Properties=""Excel 8.0; HDR=Yes; IMEX=1"""
"HDR=Yes; " indicates that the first row contains columnnames, not data
"IMEX=1; " tells the driver to always read "intermixed" data columns as text
TIP! SQL syntax: "SELECT * FROM [sheet1$]" - i.e. worksheet name followed by a "$" and wrapped in "[" "]" brackets.
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Text
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ODBC
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标准
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"Driver={Microsoft Text Driver (*.txt; *.csv)}; Dbq=c: xtFilesFolder; Extensions=asc,csv,tab,txt; "
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OLE DB
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标准
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"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=c: xtFilesFolder; Extended Properties=""text; HDR=Yes; FMT=Delimited"""
"HDR=Yes; " indicates that the first row contains columnnames, not data
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DBF / FoxPro
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ODBC
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标准
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"Driver={Microsoft dBASE Driver (*.dbf)}; DriverID=277; Dbq=c:mydbpath; "
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OLE DB, OleDbConnection (.NET)
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标准
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"Provider=Microsoft.Jet.OLEDB.4.0; Data Source=c:folder; Extended Properties=dBASE IV; User ID=Admin; Password="
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AS/400 (iSeries)
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OLE DB, OleDbConnection (.NET)
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IBM Client Access OLE DB provider
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"PROVIDER=IBMDA400; DATA SOURCE=MY_SYSTEM_NAME; USER ID=myUserName; PASSWORD=myPwd"
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IBM Client Access OLE DB provider
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"PROVIDER=IBMDA400; DATA SOURCE=MY_SYSTEM_NAME; USER ID=myUserName; PASSWORD=myPwd; DEFAULT COLLECTION=MY_LIBRARY; "
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ODBC
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IBM Client Access ODBC driver
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"Driver={Client Access ODBC Driver (32-bit)}; System=my_system_name; Uid=myUserName; Pwd=myPwd"
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Exchange
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OLE DB
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Exchange OLE DB provider
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"ExOLEDB.DataSource"
Specify store in the connection open command like this: conn.open "http://servername/mypublicstore"
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Visual FoxPro
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OLE DB, OleDbConnection (.NET)
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Database container (.DBC)
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"Provider=vfpoledb.1; Data Source=C:MyDbFolderMyDbContainer.dbc; Collating Sequence=machine"
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Free table directory
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"Provider=vfpoledb.1; Data Source=C:MyDataDirectory; Collating Sequence=general"
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Force the provider to use an ODBC DSN
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"Provider=vfpoledb.1; DSN=MyDSN"
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ODBC
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Database container (.DBC)
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"Driver={Microsoft Visual FoxPro Driver}; SourceType=DBC; SourceDB=c:myvfpdb.dbc; Exclusive=No; NULL=NO; Collate=Machine; BACKGROUNDFETCH=NO; DELETED=NO"
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Free Table directory
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"Driver={Microsoft Visual FoxPro Driver}; SourceType=DBF; SourceDB=c:myvfpdbfolder; Exclusive=No; Collate=Machine; NULL=NO; DELETED=NO; BACKGROUNDFETCH=NO"
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Pervasive
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ODBC
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标准:
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"Driver={Pervasive ODBC Client Interface}; ServerName=srvname; dbq=@dbname"
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OLD DB
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标准:
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"Provider=PervasiveOLEDB; Data Source=C:path"
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UDL
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UDL
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UDL
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"File Name=c:myDataLink.udl;"
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