数据库连接字符串

一、SQL Server 1、 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;" 2、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 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) Name Default Description Application Name The name of the application, or '.Net SqlClient Data Provider' if no application name is provided. AttachDBFilename -or- extended properties -or- Initial File Name The name of the primary file, including the full path name, of an attachable database. The database name must be specified with the keyword 'database'. Connect Timeout -or- Connection Timeout 15 The length of time (in seconds) to wait for a connection to the server before terminating the attempt and generating an error. Connection Lifetime 0 When a connection is returned to the pool, its creation time is compared with the current time, and the connection is destroyed if that time span (in seconds) exceeds the value specified by connection lifetime. Useful in clustered configurations to force load balancing between a running server and a server just brought on-line. Connection Reset 'true' Determines whether the database connection is reset when being removed from the pool. Setting to 'false' avoids making an additional server round-trip when obtaining a connection, but the programmer must be aware that the connection state is not being reset. Current Language The SQL Server Language record name. Data Source -or- Server -or- Address -or- Addr -or- Network Address The name or network address of the instance of SQL Server to which to connect. Enlist 'true' When true, the pooler automatically enlists the connection in the creation thread's current transaction context. Initial Catalog -or- Database The name of the database. Integrated Security -or- Trusted_Connection 'false' Whether the connection is to be a secure connection or not. Recognized values are 'true', 'false', and 'sspi', which is equivalent to 'true'. Max Pool Size 100 The maximum number of connections allowed in the pool. Min Pool Size 0 The minimum number of connections allowed in the pool. Network Library -or- Net 'dbmssocn' The network library used to establish a connection to an instance of SQL Server. Supported values include dbnmpntw (Named Pipes), dbmsrpcn (Multiprotocol), dbmsadsn (Apple Talk), dbmsgnet (VIA), dbmsipcn (Shared Memory) and dbmsspxn (IPX/SPX), and dbmssocn (TCP/IP). The corresponding network DLL must be installed on the system to which you connect. If you do not specify a network and you use a local server (for example, "." or "(local)"), shared memory is used. Packet Size 8192 Size in bytes of the network packets used to communicate with an instance of SQL Server. Password -or- Pwd The password for the SQL Server account logging on. Persist Security Info 'false' When set to 'false', security-sensitive information, such as the password, is not returned as part of the connection if the connection is open or has ever been in an open state. Resetting the connection string resets all connection string values including the password. Pooling 'true' When true, the SQLConnection object is drawn from the appropriate pool, or if necessary, is created and added to the appropriate pool. User ID The SQL Server login account. Workstation ID the local computer name The name of the workstation connecting to SQL Server. • Access ODBC Standard Security: "Driver={Microsoft Access Driver (*.mdb)};Dbq=C:\mydatabase.mdb;Uid=Admin;Pwd=;" Workgroup: "Driver={Microsoft Access Driver (*.mdb)};Dbq=C:\mydatabase.mdb;SystemDB=C:\mydatabase.mdw;" Exclusive: "Driver={Microsoft Access Driver (*.mdb)};Dbq=C:\mydatabase.mdb;Exclusive=1;Uid=admin;Pwd=" OLE DB, OleDbConnection (.NET) Standard security: "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\somepath\mydb.mdb;User Id=admin;Password=;" Workgroup (system database): "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\somepath\mydb.mdb;Jet OLEDB:System Database=system.mdw;" With password: "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\somepath\mydb.mdb;Jet OLEDB:Database Password=MyDbPassword;" • Oracle ODBC New version: "Driver={Microsoft ODBC for Oracle};Server=OracleServer.world;Uid=Username;Pwd=asdasd;" Old version: "Driver={Microsoft ODBC Driver for Oracle};ConnectString=OracleServer.world;Uid=myUsername;Pwd=myPassword;" OLE DB, OleDbConnection (.NET) Standard security: "Provider=msdaora;Data Source=MyOracleDB;User Id=UserName;Password=asdasd;" This one's from Microsoft, the following are from Oracle Standard Security: "Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;User Id=Username;Password=asdasd;" Trusted Connection: "Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;OSAuthent=1;" OracleConnection (.NET) Standard: "Data Source=Oracle8i;Integrated Security=yes"; This one works only with Oracle 8i release 3 or later Declare the OracleConnection: C#: using System.Data.OracleClient; OracleConnection oOracleConn = new OracleConnection(); oOracleConn.ConnectionString = "my connectionstring"; oOracleConn.Open(); VB.NET: Imports System.Data.OracleClient Dim oOracleConn As OracleConnection = New OracleConnection() oOracleConn.ConnectionString = "my connectionstring" oOracleConn.Open() Data Shape MS Data Shape: "Provider=MSDataShape.1;Persist Security Info=False;Data Provider=MSDAORA;Data Source=orac;user id=username;password=mypw" Want to learn data shaping? Check out 4GuyfFromRolla's great article about Data Shaping >> • MySQL ODBC Local database: "Driver={mySQL};Server=mySrvName;Option=16834;Database=mydatabase;" Remote database: "Driver={mySQL};Server=data.domain.com;Port=3306;Option=131072;Stmt=;Database=my-database;Uid=username;Pwd=password;" OLE DB, OleDbConnection (.NET) Standard: "Provider=MySQLProv;Data Source=mydb;User Id=UserName;Password=asdasd;" MySqlConnection (.NET) eInfoDesigns.dbProvider: "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 Declare the MySqlConnection: C#: using eInfoDesigns.dbProvider.MySqlClient; MySqlConnection oMySqlConn = new MySqlConnection(); oMySqlConn.ConnectionString = "my connectionstring"; oMySqlConn.Open(); VB.NET: Imports eInfoDesigns.dbProvider.MySqlClient Dim oMySqlConn As MySqlConnection = New MySqlConnection() oMySqlConn.ConnectionString = "my connectionstring" oMySqlConn.Open() • Interbase ODBC, Easysoft Local computer: "Driver={Easysoft IB6 ODBC};Server=localhost;Database=localhost:C:\mydatabase.gdb;Uid=username;Pwd=password" Remote Computer: "Driver={Easysoft IB6 ODBC};Server=ComputerName;Database=ComputerName:C:\mydatabase.gdb;Uid=username;Pwd=password" Read more about this driver: Easysoft ODBC-Interbase driver >> ODBC, Intersolv Local computer: "Driver={INTERSOLV InterBase ODBC Driver (*.gdb)};Server=localhost;Database=localhost:C:\mydatabase.gdb;Uid=username;Pwd=password" Remote Computer: "Driver={INTERSOLV InterBase ODBC Driver (*.gdb)};Server=ComputerName;Database=ComputerName:C:\mydatabase.gdb;Uid=username;Pwd=password" This driver are provided by DataDirect Technologies >> (formerly Intersolv) OLE DB, SIBPROvider Standard: "provider=sibprovider;location=localhost:;data source=c:\databases\gdbs\mygdb.gdb;user id=SYSDBA;password=masterkey" Specifying character set: "provider=sibprovider;location=localhost:;data source=c:\databases\gdbs\mygdb.gdb;user id=SYSDBA;password=masterkey;character set=ISO8859_1" Specifying role: "provider=sibprovider;location=localhost:;data source=c:\databases\gdbs\mygdb.gdb;user id=SYSDBA;password=masterkey;role=DIGITADORES" Read more about SIBPROvider >>