数据库连接字符串大全

数据库连接字符串大全计算机编程交流群：60231207 一．SQL Server1．ODBC 数据源方式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") = adPromptAlwaysoConn.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") = adPromptAlwaysoConn.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))3． 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" (both 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;"(both connection strings produces the same result) (use serverName\instanceName as Data Source to use an specifik SQLServer instance, only 2009.05.19计算机编程交流群南昌大学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 cnn = new SqlConnection();cnn.ConnectionString="my connection string";cnn.Open();:Imports System.Data.SqlClientDim oSQLConn As SqlConnection = New SqlConnection()oSQLConn.ConnectionString="my connection string"oSQLConn.Open()二．Data ShapeMS 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 ShapingRead moreHow to define which network protocol to useExample:"Provider=sqloledb;Data Source=190.190.200.100,1433;Network Library=DBMSSOCN; Initial Catalog=pubs;User ID=sa;Password=asdasd;"Name Network librarydbnmpntw Win32 Named Pipesdbmssocn Win32 Winsock TCP/IPdbmsspxn Win32 SPX/IPXdbmsvinn Win32 Banyan Vinesdbmsrpcn Win32 Multi-Protocol (Windows RPC)Important note!When connecting through the SQLOLEDB provider use the syntax Network Library=dbmssocnand when connecting through MSDASQL provider use the syntax Network=dbmssocnAll SqlConnection connection string propertiesThis table shows all connection string properties for the SqlConnection object. Most of the properties are also used in ADO. All properties and descriptions is from msdn.Name DefaultDescription Application NameThe name of the application, or '.Net SqlClient Data Provider' if no application name is provided. AttachDBFilename或extendedproperties 或Initial File NameThe 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或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 iscompared with the current time, and the connection isdestroyed if that time span (in seconds) exceeds the valuespecified by connection lifetime. Useful in clusteredconfigurations to force load balancing between a runningserver and a server just brought on-line.Connection Reset 'true' Determines whether the database connection is reset whenbeing removed from the pool. Setting to 'false' avoids makingan additional server round-trip when obtaining a connection,but the programmer must be aware that the connection state isnot being reset.Current Language The SQL Server Language record name.Data Source 或Server 或Address 或Addr或Network AddressThe name or network address of the instance of SQL Server towhich to connect. Enlist 'true' When true, the pooler automatically enlists the connection in the creation thread's current transaction context.Initial Catalog或DatabaseThe name of the database. Integrated Security或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 Size100 The maximum number of connections allowed in the pool. Min Pool Size 0 The minimum number of connections allowed in the pool.Network Library 或 Net 'dbmsso cn'The network library used to establish a connection to aninstance of SQL Server. Supported values include dbnmpntw(Named Pipes), dbmsrpcn (Multiprotocol), dbmsadsn (AppleTalk), dbmsgnet (VIA), dbmsipcn (Shared Memory) anddbmsspxn (IPX/SPX), and dbmssocn (TCP/IP). Thecorresponding network DLL must be installed on the system towhich 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或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 theappropriate pool, or if necessary, is created and added to theappropriate pool.User ID The SQL Server login account.Workstation ID the local computer name The name of the workstation connecting to SQL Server.Note用“;”分隔每个属性。