NET数据库连接字符串.docx

1、NET数据库连接字符串.NET数据库连接字符串1 说明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。2 SQL Server2.1 ODBC1、标准安全 Driver=SQL Ser

2、ver; Server=Aron1; Database=pubs; Uid=sa; Pwd=asdasd; 2、信任的连接 Driver=SQL Server; Server=Aron1; Database=pubs; Trusted_Connection=yes; 3、提示输入用户名和密码 oConn.Properties( Prompt ) = adPromptAlwaysoConn.Open Driver=SQL Server; Server=Aron1; DataBase=pubs; 2.2 OLE DB, OleDbConnection (.NET) 1、标准安全 Provider=

3、sqloledb; Data Source=Aron1; Initial Catalog=pubs; User Id=sa; Password=asdasd; 2、信任的连接 Provider=sqloledb; Data Source=Aron1; Initial Catalog=pubs; Integrated Security=SSPI;(use serverNameinstanceName as Data Source to use an specifik SQLServer instance, only SQLServer2000) 3、提示输入用户名和密码 oConn.Provid

4、er = sqloledboConn.Properties( Prompt ) = adPromptAlwaysoConn.Open Data Source=Aron1; Initial Catalog=pubs; 4、IP地址连接管道 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

5、 of the Data Source is the port to use (1433 is the default) 2.3 SqlConnection (.NET) 1、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 resul

6、t) 2、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)(use serverNameinstanceName as Data Source to use an specifik SQLServer instance, only SQLServer2000) 3、IP地址连接管

7、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) 4、定义SqlConnection对象 C#:using System.Data.SqlClient;SqlConnection oSQLConn =

8、 new SqlConnection();oSQLConn.ConnectionString= my connection string ;oSQLConn.Open(); VB.NET:Imports System.Data.SqlClientDim oSQLConn As SqlConnection = New SqlConnection()oSQLConn.ConnectionString= my connection stringoSQLConn.Open() Data Shape MS Data Shape Provider=MSDataShape; Data Provider=SQ

9、LOLEDB; Data Source=Aron1; Initial Catalog=pubs; User ID=sa; Password=asdasd; 3 SQL Server 2005 3.1 SQL Native Client ODBC Driver 1、标准安全 Driver=SQL Native Client; Server=Aron1; Database=pubs; UID=sa; PWD=asdasd; 2、信任的连接 Driver=SQL Native Client; Server=Aron1; Database=pubs; Trusted_Connection=yes;Eq

10、uivalentsIntegrated Security=SSPI equals Trusted_Connection=yes 3、提示输入用户名和密码 oConn.Properties( Prompt ) = adPromptAlwaysoConn.Open Driver=SQL Native Client; Server=Aron1; DataBase=pubs; 4、授权的MARS(多重活动结果集) Driver=SQL Native Client; Server=Aron1; Database=pubs; Trusted_Connection=yes; MARS_Connection=

11、yesEquivalentsMultipleActiveResultSets=true equals MARS_Connection=yes 5、加密数据网络传输 Driver=SQL Native Client; Server=Aron1; Database=pubs; Trusted_Connection=yes; Encrypt=yes 6、在本地SQL服务器实例附加数据库文件 Driver=SQL Native Client; Server=.SQLExpress; AttachDbFilename=c:asdqwemydbfile.mdf; Database=dbname; Trus

12、ted_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) 3.2 SQL Native Client OLE DB Provider 1、 标准安全 Provider=SQLNCLI;

13、Server=Aron1; Database=pubs; UID=sa; PWD=asdasd; 2、信任的连接 Provider=SQLNCLI; Server=Aron1; Database=pubs; Trusted_Connection=yes; EquivalentsIntegrated Security=SSPI equals Trusted_Connection=yes 3、提示输入用户名和密码 oConn.Properties( Prompt ) = adPromptAlwaysoConn.Open Provider=SQLNCLI; Server=Aron1; DataBas

14、e=pubs; 4、授权的MARS(多重活动结果集) Provider=SQLNCLI; Server=Aron1; Database=pubs; Trusted_Connection=yes; MarsConn=yesEquivalentsMarsConn=yes equals MultipleActiveResultSets=true equals MARS_Connection=yes 5、加密数据网络传输 Provider=SQLNCLI; Server=Aron1; Database=pubs; Trusted_Connection=yes; Encrypt=yes 6、在本地SQL

15、服务器实例附加数据库文件 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 databa

16、se file resides in the data directory) 3.3 SqlConnection (.NET) 1、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) 2、信任的连接 Data Source

17、=Aron1; Initial Catalog=pubs; Integrated Security=SSPI; - or - Server=Aron1; Database=pubs; Trusted_Connection=True; (both connection strings produces the same result) 3、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=

18、TCP/IP instead of Named Pipes, at the end of the Data Source is the port to use (1433 is the default) 4、授权的MARS(多重活动结果集) Server=Aron1; Database=pubs; Trusted_Connection=True; MultipleActiveResultSets=trueNote! Use ADO.NET 2.0 for MARS functionality. MARS is not supported in ADO.NET 1.0 nor ADO.NET 1

19、.1 5、在本地SQL服务器实例附加数据库文件 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; 6、Using User Instance on a local SQL Server E

20、xpress 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 u

21、sing 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? Dont

22、 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 3.4 Context Connection - connecting to self from within your CLR stored prodedure/function 1、C# using(SqlConn

23、ection connection = new SqlConnection(context connection=true)connection.Open();/ Use the connection 2、Visual Basic Using connection as new SqlConnection(context connection=true)connection.Open() Use the connectionEnd Using 3.5 Read more When to use SQL Native Client? .Net applicationsDo not use the

24、 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 applicationsUse the SQL Native Client if you are accessing an SQL Server 2005 and need the new features of SQL Server 2005

25、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 (thats 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.

26、4 ACCESS4.1 ODBC 1、标准安全 Driver=Microsoft Access Driver (*.mdb); Dbq=C:mydatabase.mdb; Uid=Admin; Pwd=; 2、工作组 Driver=Microsoft Access Driver (*.mdb); Dbq=C:mydatabase.mdb; SystemDB=C:mydatabase.mdw; 3、独占 Driver=Microsoft Access Driver (*.mdb); Dbq=C:mydatabase.mdb; Exclusive=1; Uid=admin; Pwd= 4.2 OL

27、E DB, OleDbConnection (.NET) 1、标准安全 Provider=Microsoft.Jet.OLEDB.4.0; Data Source=somepathmydb.mdb; User Id=admin; Password=; 2、工作组 (system database) Provider=Microsoft.Jet.OLEDB.4.0; Data Source=somepathmydb.mdb; Jet OLEDB:System Database=system.mdw; 3、使用密码 Provider=Microsoft.Jet.OLEDB.4.0; Data So

28、urce=somepathmydb.mdb; Jet OLEDB:Database Password=MyDbPassword; 5 Oracle 5.1 ODBC 1、新版本 Driver=Microsoft ODBC for Oracle; Server=OracleServer.world; Uid=Username; Pwd=asdasd; 2、旧版本 Driver=Microsoft ODBC Driver for Oracle; ConnectString=OracleServer.world; Uid=myUsername; Pwd=myPassword; 5.2 OLE DB,

29、 OleDbConnection (.NET) 1、标准安全 Provider=msdaora; Data Source=MyOracleDB; User Id=UserName; Password=asdasd; This ones from Microsoft, the following are from Oracle 2、标准安全 Provider=OraOLEDB.Oracle; Data Source=MyOracleDB; User Id=Username; Password=asdasd; 3、信任的连接 Provider=OraOLEDB.Oracle; Data Sourc

30、e=MyOracleDB; OSAuthent=1; 5.3 OracleConnection (.NET) 1、标准 Data Source=MyOracleDB; Integrated Security=yes; This one works only with Oracle 8i release 3 or later 2、指定用户名和密码 Data Source=MyOracleDB; User Id=username; Password=passwd; Integrated Security=no; This one works only with Oracle 8i release

31、3 or later 3、定义OracleConnection对象 C#:using System.Data.OracleClient;OracleConnection oOracleConn = new OracleConnection();oOracleConn.ConnectionString = my connection string;oOracleConn.Open(); VB.NET:Imports System.Data.OracleClientDim oOracleConn As OracleConnection = New OracleConnection()oOracleConn.ConnectionString = my connection stringoOracleConn.Open() 5.4