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Clase LinkedServer

A LinkedServer object represents a database system other than SQL Server and is linked to the current instance of SQL Server by using an OLE DB driver.

Jerarquía de herencia

System.Object
  Microsoft.SqlServer.Management.Smo.SmoObjectBase
    Microsoft.SqlServer.Management.Smo.SqlSmoObject
      Microsoft.SqlServer.Management.Smo.NamedSmoObject
        Microsoft.SqlServer.Management.Smo.LinkedServer

Espacio de nombres:  Microsoft.SqlServer.Management.Smo
Ensamblado:  Microsoft.SqlServer.Smo (en Microsoft.SqlServer.Smo.dll)

Sintaxis

'Declaración
<PhysicalFacetAttribute> _
<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)> _
Public NotInheritable Class LinkedServer _
    Inherits NamedSmoObject _
    Implements ISfcSupportsDesignMode, ICreatable, IDroppable, IAlterable,  _
    IScriptable
'Uso
Dim instance As LinkedServer
[PhysicalFacetAttribute]
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)]
public sealed class LinkedServer : NamedSmoObject, 
    ISfcSupportsDesignMode, ICreatable, IDroppable, IAlterable, IScriptable
[PhysicalFacetAttribute]
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode::CheckOnSchedule)]
public ref class LinkedServer sealed : public NamedSmoObject, 
    ISfcSupportsDesignMode, ICreatable, IDroppable, IAlterable, IScriptable
[<SealedAttribute>]
[<PhysicalFacetAttribute>]
[<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)>]
type LinkedServer =  
    class 
        inherit NamedSmoObject 
        interface ISfcSupportsDesignMode 
        interface ICreatable 
        interface IDroppable 
        interface IAlterable 
        interface IScriptable 
    end
public final class LinkedServer extends NamedSmoObject implements ISfcSupportsDesignMode, ICreatable, IDroppable, IAlterable, IScriptable

El tipo LinkedServer expone los siguientes miembros.

Constructores

  Nombre Descripción
Método público LinkedServer() Initializes a new instance of the LinkedServer object.
Método público LinkedServer(Server, String) Initializes a new instance of the LinkedServer object on the specified instance of SQL Server and with the specified name.

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Propiedades

  Nombre Descripción
Propiedad pública Catalog Gets or sets the database to be used when the linked server is made through a connection to an OLE DB provider.
Propiedad pública CollationCompatible Gets or sets the Boolean property value that specifies whether the default collation of the linked server is compatible with the default collation on the local instance of SQL Server.
Propiedad pública CollationName Gets or sets the name of the collation to use when sorting data from the linked server.
Propiedad pública ConnectTimeout Gets or sets the number of seconds to wait for a connection to be established with the linked server before timing out.
Propiedad pública DataAccess Gets or sets the Boolean property value that specifies whether data can be accessed on the linked server.
Propiedad pública DataSource Gets or sets the data source to be used when the linked server is made through a connection to an OLE DB provider.
Propiedad pública DateLastModified Gets the date and time when the linked server was last modified.
Propiedad pública DistPublisher Gets or sets a Boolean property value that specifies whether the linked server is participating in replication as a distribution Publisher.
Propiedad pública Distributor Gets or sets a Boolean property value that specifies whether the linked server is participating in replication as a distribution Publisher.
Propiedad pública ID Gets the ID value that uniquely identifies the linked server.
Propiedad pública IsPromotionofDistributedTransactionsForRPCEnabled Gets or sets a Boolean property value that specifies whether the promotion of distributed transaction for RPC (remote procedure calls) is enabled.
Propiedad pública LazySchemaValidation Gets or sets the Boolean property value that specifies whether the schema used by the linked server data is validated when the local instance of SQL Server is idle or not.
Propiedad pública LinkedServerLogins Represents a collection of LinkedServerLogin objects. Each LinkedServerLogin object represents a linked server login defined on the linked server.
Propiedad pública Location Gets or sets the description of the location of the linked server.
Propiedad pública Name Gets or sets a String which contains the name of the LinkedServer. (Invalida NamedSmoObject.Name.)
Propiedad pública Parent Gets or sets the Server object that is the parent of the LinkedServer object.
Propiedad pública ProductName Gets or sets the name of the product to which SQL Server can connect through the OLE DB Provider.
Propiedad pública Properties Gets a collection of Property objects that represent the object properties. (Se hereda de SqlSmoObject.)
Propiedad pública ProviderName Gets or sets the name of the OLE DB provider used to connect to the linked server.
Propiedad pública ProviderString Gets or sets the connection string used to connect to a linked server by way of the OLE DB Provider.
Propiedad pública Publisher Gets or sets a Boolean property value that specifies whether the linked server is a replication Publisher or not.
Propiedad pública QueryTimeout Gets or sets the time in seconds to wait for a query to execute before timing out.
Propiedad pública Rpc Gets or sets the Boolean property value that specifies whether the linked server supports remote procedure calls (RPCs).
Propiedad pública RpcOut The Boolean property value that specifies whether the linked server supports remote procedure calls (RPCs) with output parameters.
Propiedad pública State Gets the state of the referenced object. (Se hereda de SmoObjectBase.)
Propiedad pública Subscriber Gets or sets the Boolean property value that specifies whether the linked server is a replication Subscriber.
Propiedad pública Urn Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. (Se hereda de SqlSmoObject.)
Propiedad pública UserData Gets or sets user-defined data associated with the referenced object. (Se hereda de SmoObjectBase.)
Propiedad pública UseRemoteCollation Gets or sets the Boolean property value that specifies whether to use the collation that is associated with the data from the linked server.

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Métodos

  Nombre Descripción
Método público Alter Updates any LinkedServer object property changes on the instance of SQL Server. 
Método público Create Creates a linked server on the instance of SQL Server as defined by the LinkedServer object.
Método público Discover Discovers a list of type Object. (Se hereda de SqlSmoObject.)
Método público Drop() Removes the reference to the linked server from the instance of SQL Server.
Método público Drop(Boolean) Removes the reference to the linked server from the instance of SQL Server.
Método público EnumColumns() Enumerates a list of columns that can be accessed on the linked server.
Método público EnumColumns(String) Enumerates a list of columns that can be accessed on the linked server for a specified table.
Método público EnumColumns(String, String) Enumerates a list of columns that can be accessed on the linked server for a specified table and schema.
Método público EnumColumns(String, String, String) Enumerates a list of columns that can be accessed on the linked server for a specified table, schema, and database.
Método público EnumColumns(String, String, String, String) Enumerates a list of columns that can be accessed on the linked server for a specified column.
Método público EnumTables() Enumerates a list of tables that are available on the linked server.
Método público EnumTables(String) Enumerates a list of tables that are available on the linked server for a specified table name.
Método público EnumTables(String, String) Enumerates a list of tables that are available on the linked server for a specified table name and schema.
Método público EnumTables(String, String, String) Enumerates a list of tables that are available on the linked server for a specified table name, schema, and database.
Método público EnumTables(String, String, String, LinkedTableType) Enumerates a list of tables that are available on the linked server for a specified table name, schema, database, and linked table type.
Método público Equals (Se hereda de Object.)
Método protegido FormatSqlVariant Formats an object as SqlVariant type. (Se hereda de SqlSmoObject.)
Método protegido GetContextDB Gets the context database that is associated with this object. (Se hereda de SqlSmoObject.)
Método protegido GetDBName Gets the database name that is associated with the object. (Se hereda de SqlSmoObject.)
Método público GetHashCode (Se hereda de Object.)
Método protegido GetPropValue Gets a property value of the SqlSmoObject object. (Se hereda de SqlSmoObject.)
Método protegido GetPropValueOptional Gets a property value of the SqlSmoObject object. (Se hereda de SqlSmoObject.)
Método protegido GetPropValueOptionalAllowNull Gets a property value of the SqlSmoObject object. (Se hereda de SqlSmoObject.)
Método protegido GetServerObject Gets the server of the SqlSmoObject object. (Se hereda de SqlSmoObject.)
Método público GetType (Se hereda de Object.)
Método público Initialize() Initializes the object and forces the properties be loaded. (Se hereda de SqlSmoObject.)
Método público Initialize(Boolean) Initializes the object and forces the properties be loaded. (Se hereda de SqlSmoObject.)
Método protegido IsObjectInitialized Verifies whether the object has been initialized. (Se hereda de SqlSmoObject.)
Método protegido IsObjectInSpace Verifies whether the object is isolated or connected to the instance of SQL Server. (Se hereda de SqlSmoObject.)
Método público Refresh Refreshes the object and retrieves properties when the object is next accessed. (Se hereda de SqlSmoObject.)
Método público Script() Generates a Transact-SQL script that can be used to re-create the linked server registration.
Método público Script(ScriptingOptions) Generates a Transact-SQL script that can be used to re-create the linked server registration as specified by the script options.
Método protegido SetParentImpl Sets the parent of the SqlSmoObject to the newParent parameter. (Se hereda de SqlSmoObject.)
Método público TestConnection Tests the connection to a linked server.
Método público ToString Returns a String that represents the referenced object. (Se hereda de SqlSmoObject.)
Método público Validate Validates the state of an object. (Se hereda de SmoObjectBase.)

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Eventos

  Nombre Descripción
Evento público PropertyChanged Represents the event that occurs when a property is changed. (Se hereda de SqlSmoObject.)
Evento público PropertyMetadataChanged Represents the event that occurs when property metadata changes. (Se hereda de SqlSmoObject.)

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Implementaciones de interfaces explícitas

  Nombre Descripción
Implementación de interfaces explícitasMétodo privado IAlienObject.Discover Discovers any dependencies. No haga referencia directamente a este miembro en el código. Admite la infraestructura de SQL Server. (Se hereda de SqlSmoObject.)
Implementación de interfaces explícitasMétodo privado IAlienObject.GetDomainRoot Returns the root of the domain. (Se hereda de SqlSmoObject.)
Implementación de interfaces explícitasMétodo privado IAlienObject.GetParent Gets the parent of this object. No haga referencia directamente a este miembro en el código. Admite la infraestructura de SQL Server. (Se hereda de SqlSmoObject.)
Implementación de interfaces explícitasMétodo privado IAlienObject.GetPropertyType Gets the type of the specified property. (Se hereda de SqlSmoObject.)
Implementación de interfaces explícitasMétodo privado IAlienObject.GetPropertyValue Gets the value of the specified property. (Se hereda de SqlSmoObject.)
Implementación de interfaces explícitasMétodo privado IAlienObject.GetUrn Gets the Unified Resource Name (URN) of the object. No haga referencia directamente a este miembro en el código. Admite la infraestructura de SQL Server. (Se hereda de SqlSmoObject.)
Implementación de interfaces explícitasMétodo privado IAlienObject.Resolve Gets the instance that contains the information about the object from the Unified Resource Name (URN) of the object. (Se hereda de SqlSmoObject.)
Implementación de interfaces explícitasMétodo privado IAlienObject.SetObjectState Sets the object state to the specified SfcObjectState value. (Se hereda de SqlSmoObject.)
Implementación de interfaces explícitasMétodo privado IAlienObject.SetPropertyValue Sets the property value. (Se hereda de SqlSmoObject.)
Implementación de interfaces explícitasMétodo privado ISfcPropertyProvider.GetPropertySet Gets the interface reference to the set of properties of this object. (Se hereda de SqlSmoObject.)
Implementación de interfaces explícitasPropiedad privada ISfcSupportsDesignMode.IsDesignMode Gets or sets the Boolean property value that specifies whether the schema used by the linked server data is validated when the local instance of SQL Server is idle or not.

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Comentarios

To get LinkedServer object properties, users can be a member of the public fixed server role.

To set LinkedServer object properties, users must have ALTER ANY LINKED SERVER permission on the server or be a member of the sysadmin fixed server role.

To create or drop a linked server, users must have ALTER ANY LINKED SERVER permission on the server or be a member of the sysadmin fixed server role.

To enumerate tables or columns on the linked server, users must have SELECT permission on the schema.

Thread Safety

Todos los miembros estáticos (compartidos en Microsoft Visual Basic) públicos de este tipo son seguros para operaciones multiproceso. No se garantiza que los miembros de instancia sean seguros para subprocesos.  

Ejemplos

Utilizar servidores vinculados en SMO

Seguridad para subprocesos

Cualquier miembro público static (Shared en Visual Basic) de este tipo es seguro para subprocesos. No se garantiza que los miembros de instancia sean seguros para subprocesos.

Vea también

Referencia

Espacio de nombres Microsoft.SqlServer.Management.Smo

Otros recursos

Servidores vinculados (motor de base de datos)

sp_addlinkedserver (Transact-SQL)