Clase LogFile
The LogFile object represents a SQL Server log file.
Jerarquía de herencia
System.Object
Microsoft.SqlServer.Management.Smo.SmoObjectBase
Microsoft.SqlServer.Management.Smo.SqlSmoObject
Microsoft.SqlServer.Management.Smo.NamedSmoObject
Microsoft.SqlServer.Management.Smo.DatabaseFile
Microsoft.SqlServer.Management.Smo.LogFile
Espacio de nombres: Microsoft.SqlServer.Management.Smo
Ensamblado: Microsoft.SqlServer.Smo (en Microsoft.SqlServer.Smo.dll)
Sintaxis
'Declaración
<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)> _
<PhysicalFacetAttribute> _
Public NotInheritable Class LogFile _
Inherits DatabaseFile _
Implements ICreatable, ISfcSupportsDesignMode
'Uso
Dim instance As LogFile
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)]
[PhysicalFacetAttribute]
public sealed class LogFile : DatabaseFile,
ICreatable, ISfcSupportsDesignMode
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode::CheckOnSchedule)]
[PhysicalFacetAttribute]
public ref class LogFile sealed : public DatabaseFile,
ICreatable, ISfcSupportsDesignMode
[<SealedAttribute>]
[<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)>]
[<PhysicalFacetAttribute>]
type LogFile =
class
inherit DatabaseFile
interface ICreatable
interface ISfcSupportsDesignMode
end
public final class LogFile extends DatabaseFile implements ICreatable, ISfcSupportsDesignMode
El tipo LogFile expone los siguientes miembros.
Constructores
| Nombre | Descripción | |
|---|---|---|
.gif "Método público") |
LogFile() | Initializes a new instance of the LogFile class. |
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LogFile(Database, String) | Initializes a new instance of the LogFile class for the specified database and that has the specified name. |
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LogFile(Database, String, String) | Initializes a new instance of the LogFile class for the specified database and that has the specified name and physical file name. |
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Propiedades
| Nombre | Descripción | |
|---|---|---|
.gif "Propiedad pública") |
BytesReadFromDisk | Gets the number of bytes read from disk. |
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BytesWrittenToDisk | Gets the number of bytes written to disk. |
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FileName | Gets or sets the file name of the log file. |
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Growth | Gets or sets the growth increment for the log file in KB or percent. |
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GrowthType | Gets or sets the growth type for the data file in KB or percent. |
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ID | Gets the ID value that uniquely identifies the log file. |
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IsOffline | Gets the Boolean value that specifies whether the log file is offline or not. |
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IsReadOnly | Gets the Boolean value that specifies whether the log file is read-only or can be updated. |
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IsReadOnlyMedia | Gets the Boolean value that specifies whether the log file is stored on read-only media. |
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IsSparse | Gets the Boolean value that specifies whether the file is a sparse file. Sparse files are used in database snapshots. |
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MaxSize | Gets or set the maximum size to which the file can grow, in MB. |
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Name | Gets or sets the name of the object. (Se hereda de NamedSmoObject.) |
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NumberOfDiskReads | Gets an Int64 value that specifies the number of disk reads. |
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NumberOfDiskWrites | Gets an Int64 value that specifies the number of disk writes. |
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Parent | Gets or sets the Database object that is the parent of the LogFile object. |
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Properties | Gets a collection of Property objects that represent the object properties. (Se hereda de SqlSmoObject.) |
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Size | Gets or sets the current size of the log file, in KB. |
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State | Gets the state of the referenced object. (Se hereda de SmoObjectBase.) |
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Urn | Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. (Se hereda de SqlSmoObject.) |
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UsedSpace | Gets the amount of used space in the log file in KB. |
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UserData | Gets or sets user-defined data associated with the referenced object. (Se hereda de SmoObjectBase.) |
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VolumeFreeSpace | Gets an Int64 value that specifies the volume free space in bytes. |
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Métodos
| Nombre | Descripción | |
|---|---|---|
|
Alter | Updates any property changes to the object to the instance of Microsoft SQL Server. (Se hereda de DatabaseFile.) |
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Create | Creates a log file on the instance of SQL Server as defined by the LogFile object. |
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Discover | Discovers a list of type Object. (Se hereda de SqlSmoObject.) |
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Drop | Drops a database file. (Se hereda de DatabaseFile.) |
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Equals | (Se hereda de Object.) |
.gif "Método protegido") |
FormatSqlVariant | Formats an object as SqlVariant type. (Se hereda de SqlSmoObject.) |
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GetContextDB | Gets the context database that is associated with this object. (Se hereda de SqlSmoObject.) |
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GetDBName | Gets the database name that is associated with the object. (Se hereda de SqlSmoObject.) |
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GetHashCode | (Se hereda de Object.) |
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GetPropValue | Gets a property value of the SqlSmoObject object. (Se hereda de SqlSmoObject.) |
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GetPropValueOptional | Gets a property value of the SqlSmoObject object. (Se hereda de SqlSmoObject.) |
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GetPropValueOptionalAllowNull | Gets a property value of the SqlSmoObject object. (Se hereda de SqlSmoObject.) |
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GetServerObject | Gets the server of the SqlSmoObject object. (Se hereda de SqlSmoObject.) |
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GetType | (Se hereda de Object.) |
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Initialize() | Initializes the object and forces the properties be loaded. (Se hereda de SqlSmoObject.) |
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Initialize(Boolean) | Initializes the object and forces the properties be loaded. (Se hereda de SqlSmoObject.) |
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IsObjectInitialized | Verifies whether the object has been initialized. (Se hereda de SqlSmoObject.) |
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IsObjectInSpace | Verifies whether the object is isolated or connected to the instance of SQL Server. (Se hereda de SqlSmoObject.) |
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MarkForDrop | Marks the database file to be dropped next time its parent object is altered by the Alter method. (Se hereda de DatabaseFile.) |
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Refresh | Refreshes the object and retrieves properties when the object is next accessed. (Se hereda de SqlSmoObject.) |
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Rename | Renames a database file. (Se hereda de DatabaseFile.) |
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SetParentImpl | Sets the parent of the SqlSmoObject to the newParent parameter. (Se hereda de SqlSmoObject.) |
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Shrink | Shrinks a database file. (Se hereda de DatabaseFile.) |
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ToString | Returns a String that represents the referenced object. (Se hereda de SqlSmoObject.) |
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Validate | Validates the state of an object. (Se hereda de SmoObjectBase.) |
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Eventos
| Nombre | Descripción | |
|---|---|---|
.gif "Evento público") |
PropertyChanged | Represents the event that occurs when a property is changed. (Se hereda de SqlSmoObject.) |
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PropertyMetadataChanged | Represents the event that occurs when property metadata changes. (Se hereda de SqlSmoObject.) |
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Implementaciones de interfaces explícitas
| Nombre | Descripción | |
|---|---|---|
.gif "Implementación de interfaces explícitas") .gif "Método 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.) |
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IAlienObject.GetDomainRoot | Returns the root of the domain. (Se hereda de SqlSmoObject.) |
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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.) |
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IAlienObject.GetPropertyType | Gets the type of the specified property. (Se hereda de SqlSmoObject.) |
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IAlienObject.GetPropertyValue | Gets the value of the specified property. (Se hereda de SqlSmoObject.) |
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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.) |
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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.) |
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IAlienObject.SetObjectState | Sets the object state to the specified SfcObjectState value. (Se hereda de SqlSmoObject.) |
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IAlienObject.SetPropertyValue | Sets the property value. (Se hereda de SqlSmoObject.) |
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ISfcPropertyProvider.GetPropertySet | Gets the interface reference to the set of properties of this object. (Se hereda de SqlSmoObject.) |
.gif "Propiedad privada") |
ISfcSupportsDesignMode.IsDesignMode | Gets a Boolean value that specifies whether the object supports design mode. |
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Comentarios
To get the LogFile object properties, users can be a member of the public fixed server role.
To set LogFile object properties, users must have ALTER permission on the database or be a member of the db_owner fixed database role.
To create or drop a log file, users must have ALTER permission on the database or be a member of the db_owner fixed database role.
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 grupos de archivos y archivos para almacenar datos
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