ServerConnection 類別

The ServerConnection object represents a connection to a server.

繼承階層

System. . :: . .Object
  Microsoft.SqlServer.Management.Common. . :: . .ConnectionSettings
    Microsoft.SqlServer.Management.Common. . :: . .ConnectionManager
      Microsoft.SqlServer.Management.Common..::..ServerConnection

命名空間：  Microsoft.SqlServer.Management.Common
組件：  Microsoft.SqlServer.ConnectionInfo (在 Microsoft.SqlServer.ConnectionInfo.dll 中)

語法

'宣告
Public NotInheritable Class ServerConnection _
    Inherits ConnectionManager _
    Implements ISfcConnection
'用途
Dim instance As ServerConnection

public sealed class ServerConnection : ConnectionManager, 
    ISfcConnection

public ref class ServerConnection sealed : public ConnectionManager, 
    ISfcConnection

[<SealedAttribute>]
type ServerConnection =  
    class
        inherit ConnectionManager
        interface ISfcConnection
    end

public final class ServerConnection extends ConnectionManager implements ISfcConnection

ServerConnection 型別公開下列成員。

建構函式

	名稱	說明
	ServerConnection() () () ()	Initializes a new instance of the ServerConnection class.
	ServerConnection(SqlConnection)	Initializes a new instance of the ServerConnection class with the specified connection parameters.
	ServerConnection(String)	Initializes a new instance of the ServerConnection class with the specified server instance.
	ServerConnection(SqlConnectionInfo)	Initializes a new instance of the ServerConnection class with the specified connection information.
	ServerConnection(String, String, SecureString)	Initializes a new instance of the ServerConnection class with the specified server instance and logon credentials.
	ServerConnection(String, String, String)	Initializes a new instance of the ServerConnection class with the specified server instance and logon credentials.

上層

屬性

	名稱	說明
	ApplicationName	Gets or sets the name of the application that has established the connection with the server. (繼承自 ConnectionSettings。)
	AutoDisconnectMode	Gets or sets the automatic disconnection mode of the referenced connection to the instance of SQL Server. (繼承自 ConnectionManager。)
	BatchSeparator	Gets or sets the string value used to separate batches in the referenced connection.
	CapturedSql	Gets the Transact-SQL statements that are captured when the connection is running in capture mode. (繼承自 ConnectionManager。)
	ConnectAsUser	Gets or sets the Boolean property value that specifies whether the connection is established using impersonation. (繼承自 ConnectionSettings。)
	ConnectAsUserName	Gets or sets the name of the user when connecting using impersonation. (繼承自 ConnectionSettings。)
	ConnectAsUserPassword	Gets or sets the password for the user when connecting using impersonation. (繼承自 ConnectionSettings。)
	ConnectionString	Gets or sets the connection string used to establish a connection with a specified data source. (繼承自 ConnectionSettings。)
	ConnectionType	Gets the type of connection to use in the server.
	ConnectTimeout	Gets or sets the connection time-out period in seconds. (繼承自 ConnectionSettings。)
	DatabaseEngineType	Gets the database engine type. (繼承自 ConnectionManager。)
	DatabaseName	Gets or sets the database required by the connection. (繼承自 ConnectionSettings。)
	EncryptConnection	Gets or sets the Boolean property value that specifies whether the connection is encrypted. (繼承自 ConnectionSettings。)
	FixedServerRoles	Gets the fixed server role associated with the referenced connection.
	InUse	Gets or sets the Boolean property value that specifies whether the connection is being used. (繼承自 ConnectionManager。)
	IsForceDisconnected	Gets a Boolean value that specifies whether the connection was forcibly disconnected. (繼承自 ConnectionManager。)
	IsOpen	Gets the Boolean property value that specifies whether the connection is currently open. (繼承自 ConnectionManager。)
	LockTimeout	Gets or sets the time in seconds required for the connection to time out when the current transaction is locked. (繼承自 ConnectionManager。)
	Login	Gets or sets the logon required to establish a connection with the instance of the server. (繼承自 ConnectionSettings。)
	LoginSecure	Gets or sets the Boolean property that specifies whether the connection is established to the server by using Windows Authentication or SQL Server Authentication. (繼承自 ConnectionSettings。)
	MaxPoolSize	Gets or sets the maximum number of connections in a connection pool that the specified connection accepts when establishing a connection with a server. (繼承自 ConnectionSettings。)
	MinPoolSize	Gets or sets the minimum number of connections in a connection pool that the specified connection accepts when establishing a connection with a server. (繼承自 ConnectionSettings。)
	MultipleActiveResultSets	Gets or sets the Boolean property value that specifies whether more than one active result set is permitted. (繼承自 ConnectionSettings。)
	NetworkProtocol	Gets or sets the network protocol used to establish the connection to the server. (繼承自 ConnectionSettings。)
	NonPooledConnection	Gets or sets the Boolean property value that specifies whether the connection may be pooled or nonpooled. (繼承自 ConnectionSettings。)
	PacketSize	Gets or sets the packets of data sent between the client and the server over the network in bytes. (繼承自 ConnectionSettings。)
	ParameterizationMode	Gets or sets the parameterization mode for the server connection.
	Password	Gets or sets the password used with the logon to establish a connection with the server when SQL Server Authentication is used. (繼承自 ConnectionSettings。)
	PooledConnectionLifetime	Gets or sets the lifetime of the pooled connection. (繼承自 ConnectionSettings。)
	ProcessID	Gets the ID value that uniquely identifies the process associated with the referenced connection to the server.
	ResetConnectionString	Gets or sets a Boolean value that specifies whether a node in the connection string has been changed. (繼承自 ConnectionSettings。)
	SecureConnectionString	Gets or sets an encrypted version of the connection string. (繼承自 ConnectionSettings。)
	SecurePassword	Gets or sets the secure password used with the logon to establish a connection with the server when SQL Server Authentication is used. (繼承自 ConnectionSettings。)
	ServerInstance	Gets or sets the name of the server. (繼承自 ConnectionSettings。)
	ServerVersion	Gets the version of the connected instance of SQL Server. (繼承自 ConnectionManager。)
	SqlConnectionObject	Gets the connection object. (繼承自 ConnectionManager。)
	SqlExecutionModes	Gets or sets the execution mode associated with the referenced connection to the server.
	StatementTimeout	Gets or sets the number of seconds a statement is given to run before failing with a time-out error.
	TransactionDepth	Gets the current transaction depth for the referenced connection.
	TrueLogin	Gets the current logon record name used by the referenced connection.
	TrueName	Gets the name of the server.
	UseMode	Gets or sets the server connection using a specified mode.
	UserProfile	Gets the user profile associated with the referenced connection.
	WorkstationId	Gets or sets the ID value that uniquely identifies the workstation. (繼承自 ConnectionSettings。)

上層

方法

	名稱	說明
	BeginTransaction	Starts a transaction on the referenced connection.
	Cancel	Cancels the connection.
	ChangePassword(SecureString)	Changes the login password that is used with standard authentication.
	ChangePassword(String)	Changes the logon password that is used with standard authentication.
	CheckServerVersion	Checks the version of the target instance of SQL Server. (繼承自 ConnectionManager。)
	CommitTransaction	Commits the current transaction on the referenced connection.
	Connect	Connects to the instance of SQL Server. (繼承自 ConnectionManager。)
	Copy	Returns a copy of the ServerConnection object.
	Disconnect	Disconnects from the instance of SQL Server. (繼承自 ConnectionManager。)
	Equals	(繼承自 Object。)
	ExecuteNonQuery(StringCollection)	Executes a batch of statements that do not return a result set.
	ExecuteNonQuery(String)	Executes a statement that does not return a result set.
	ExecuteNonQuery(StringCollection, ExecutionTypes)	Executes a batch of statements with the specified execution options that does not return a result set.
	ExecuteNonQuery(String, ExecutionTypes)	Executes a statement with the specified execution options that does not return a result set.
	ExecuteReader(String)	Executes Transact-SQL statements that return one or multiple result sets.
	ExecuteReader(String, SqlCommand%)	Executes a reader using a SqlDataReader object value that contains one or more result sets.
	ExecuteScalar(StringCollection)	Executes a batch of Transact-SQL statements and returns the first column of the first row as an object value.
	ExecuteScalar(String)	Executes a Transact-SQL statement and returns the first column of the first row as an object value.
	ExecuteTSql	Executes a Transact-SQL command. (繼承自 ConnectionManager。)
	ExecuteWithResults(StringCollection)	Executes a batch of Transact-SQL statements that return multiple result sets.
	ExecuteWithResults(String)	Executes a Transact-SQL statement that returns a result set.
	Finalize	(繼承自 Object。)
	ForceDisconnected	Forces a disconnect from the instance of SQL Server. (繼承自 ConnectionManager。)
	GetHashCode	(繼承自 Object。)
	GetType	(繼承自 Object。)
	IsInFixedServerRole	Tests whether the logon associated with the referenced connection is a member of the specified fixed server role.
	MemberwiseClone	(繼承自 Object。)
	NormalizeQuery(String)	Uses a string input that represents the query text.
	NormalizeQuery(String, Boolean)	Normalizes the query that controls the server connection.
	RollBackTransaction	Rolls back the current transaction.
	ThrowIfPropertyNotSet(String, String)	Throws an exception if the specified connection property is null or empty. (繼承自 ConnectionSettings。)
	ThrowIfPropertyNotSet(String, String, Boolean)	Throws an exception if the specified connection property is null or, optionally, empty. (繼承自 ConnectionSettings。)
	ToString	Returns the referenced object name as a string. (繼承自 ConnectionSettings。)

上層

事件

	名稱	說明
	InfoMessage	The event that occurs when the instance of SQL Server generates an informational message.  (繼承自 ConnectionManager。)
	RemoteLoginFailed	This event occurs when a remote login fails to connect to the instance of SQL Server. (繼承自 ConnectionManager。)
	ServerMessage	The event that occurs when SQL Server returns a warning or informational message on the current connection. (繼承自 ConnectionManager。)
	StateChange	The event that occurs when the instance of SQL Server changes state.  (繼承自 ConnectionManager。)
	StatementExecuted	The event that occurs when the instance of SQL Server executes a statement on the current connection.  (繼承自 ConnectionManager。)

上層

明確 繼承 實作

	名稱	說明
	ISfcConnection. . :: . .Connect	Returns a value that indicates the server to connect using an SFC connection.
	ISfcConnection. . :: . .Copy	Uses the SFC connection to copy the server connection.
	ISfcConnection. . :: . .Disconnect	Disconnects the connection.
	ISfcConnection. . :: . .ServerVersion	Gets the version of the server.
	ISfcConnection. . :: . .ToEnumeratorObject	Renders an enumerator object for the server connection.

上層

備註

The ServerConnection class is served by the Server class and replication classes such as the ReplicationServer class.

Typically, you don't have to declare an instance of the ServerConnection object because it is created automatically with the Server object. Declare a ServerConnection object variable if you want to store the connection settings for re-use. The ConnectionContext property of the Server object points to a ServerConnection object. The ServerConnection object contains properties that relate to the connection between the Server object and the instance of SQL Server. You can use it to view or modify certain aspects of the connection, such as the process ID, processing transactions, the authentication mode, execution mode, and even to run Transact-SQL commands directly.

By using the ServerConnection object, you can do the following:

• Run Transact-SQL statements directly over the connection to the instance of SQL Server.

• Change the connection settings, such as the authentication method.

• Begin, commit and roll back transactions.

• Capture the Transact-SQL statements generated by the SMO application.

範例

For another example of this method with the Database object, see [M:Microsoft.SqlServer.Management.Smo.Database.ExecuteNonQuery(System.String].

VB

'Declare a ServerConnection object variable to specify SQL authentication, login and password.
Dim conn As New ServerConnection
conn.LoginSecure = False
conn.Login = vlogin
conn.Password = vpassword
'Connect to the local, default instance of SQL Server.
Dim srv As Server
srv = New Server(conn)
'The actual connection is made when a property is retrieved.
Console.WriteLine(srv.Information.Version)
'The connection is automatically disconnected when the Server variable goes out of scope.

PowerShell

$conn = new-object Microsoft.SqlServer.Management.Common.ServerConnection
$conn.LoginSecure = $FALSE
$conn.Login = vlogin
$conn.Password = vpassword
#Connect to the local, default instance of SQL Server
$srv = new-object Microsoft.SqlServer.Management.Smo.Server($conn)
Write-Host $srv.Information.Version

執行緒安全性

這個型別的任何公用 static (在 Visual Basic 中為 Shared) 成員都是執行緒安全的。並不是所有的執行個體成員都保證可以用於所有的執行緒。

請參閱

參考

Microsoft.SqlServer.Management.Common 命名空間

其他資源

連接到 SQL Server 的執行個體

連接到 SQL Server 的執行個體