Classe LogFile
The LogFile object represents a SQL Server log file.
Hiérarchie d'héritage
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
Espace de noms : Microsoft.SqlServer.Management.Smo
Assembly : Microsoft.SqlServer.Smo (en Microsoft.SqlServer.Smo.dll)
Syntaxe
'Déclaration
<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)> _
<PhysicalFacetAttribute> _
Public NotInheritable Class LogFile _
Inherits DatabaseFile _
Implements ICreatable, ISfcSupportsDesignMode
'Utilisation
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
Le type LogFile expose les membres suivants.
Constructeurs
| Nom | Description | |
|---|---|---|
.gif "Méthode publique") |
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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Propriétés
| Nom | Description | |
|---|---|---|
.gif "Propriété publique") |
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. (hérité 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. (hérité 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. (hérité de SmoObjectBase.) |
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Urn | Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. (hérité 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. (hérité de SmoObjectBase.) |
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VolumeFreeSpace | Gets an Int64 value that specifies the volume free space in bytes. |
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Méthodes
| Nom | Description | |
|---|---|---|
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Alter | Updates any property changes to the object to the instance of Microsoft SQL Server. (hérité 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. (hérité de SqlSmoObject.) |
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Drop | Drops a database file. (hérité de DatabaseFile.) |
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Equals | (hérité de Object.) |
.gif "Méthode protégée") |
FormatSqlVariant | Formats an object as SqlVariant type. (hérité de SqlSmoObject.) |
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GetContextDB | Gets the context database that is associated with this object. (hérité de SqlSmoObject.) |
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GetDBName | Gets the database name that is associated with the object. (hérité de SqlSmoObject.) |
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GetHashCode | (hérité de Object.) |
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GetPropValue | Gets a property value of the SqlSmoObject object. (hérité de SqlSmoObject.) |
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GetPropValueOptional | Gets a property value of the SqlSmoObject object. (hérité de SqlSmoObject.) |
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GetPropValueOptionalAllowNull | Gets a property value of the SqlSmoObject object. (hérité de SqlSmoObject.) |
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GetServerObject | Gets the server of the SqlSmoObject object. (hérité de SqlSmoObject.) |
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GetType | (hérité de Object.) |
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Initialize() | Initializes the object and forces the properties be loaded. (hérité de SqlSmoObject.) |
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Initialize(Boolean) | Initializes the object and forces the properties be loaded. (hérité de SqlSmoObject.) |
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IsObjectInitialized | Verifies whether the object has been initialized. (hérité de SqlSmoObject.) |
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IsObjectInSpace | Verifies whether the object is isolated or connected to the instance of SQL Server. (hérité 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. (hérité de DatabaseFile.) |
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Refresh | Refreshes the object and retrieves properties when the object is next accessed. (hérité de SqlSmoObject.) |
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Rename | Renames a database file. (hérité de DatabaseFile.) |
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SetParentImpl | Sets the parent of the SqlSmoObject to the newParent parameter. (hérité de SqlSmoObject.) |
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Shrink | Shrinks a database file. (hérité de DatabaseFile.) |
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ToString | Returns a String that represents the referenced object. (hérité de SqlSmoObject.) |
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Validate | Validates the state of an object. (hérité de SmoObjectBase.) |
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Événements
| Nom | Description | |
|---|---|---|
.gif "Événement public") |
PropertyChanged | Represents the event that occurs when a property is changed. (hérité de SqlSmoObject.) |
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PropertyMetadataChanged | Represents the event that occurs when property metadata changes. (hérité de SqlSmoObject.) |
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Implémentations d'interfaces explicites
| Nom | Description | |
|---|---|---|
.gif "Implémentation d'interface explicite") .gif "Méthode privée") |
IAlienObject.Discover | Discovers any dependencies. Ne faites pas directement référence à ce membre dans votre code. Il prend en charge l'infrastructure SQL Server. (hérité de SqlSmoObject.) |
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IAlienObject.GetDomainRoot | Returns the root of the domain. (hérité de SqlSmoObject.) |
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IAlienObject.GetParent | Gets the parent of this object. Ne faites pas directement référence à ce membre dans votre code. Il prend en charge l'infrastructure SQL Server. (hérité de SqlSmoObject.) |
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IAlienObject.GetPropertyType | Gets the type of the specified property. (hérité de SqlSmoObject.) |
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IAlienObject.GetPropertyValue | Gets the value of the specified property. (hérité de SqlSmoObject.) |
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IAlienObject.GetUrn | Gets the Unified Resource Name (URN) of the object. Ne faites pas directement référence à ce membre dans votre code. Il prend en charge l'infrastructure SQL Server. (hérité 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. (hérité de SqlSmoObject.) |
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IAlienObject.SetObjectState | Sets the object state to the specified SfcObjectState value. (hérité de SqlSmoObject.) |
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IAlienObject.SetPropertyValue | Sets the property value. (hérité de SqlSmoObject.) |
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ISfcPropertyProvider.GetPropertySet | Gets the interface reference to the set of properties of this object. (hérité de SqlSmoObject.) |
.gif "Propriété privée") |
ISfcSupportsDesignMode.IsDesignMode | Gets a Boolean value that specifies whether the object supports design mode. |
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Notes
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
Tout membre statique public (Partagé dans Microsoft Visual Basic) de ce type est sûr dans le cadre des opérations à plusieurs threads. Tous les membres de l'instance ne sont pas garantis comme étant thread-safe.
Exemples
Utilisation de fichiers ou de groupes de fichiers pour stocker des données
Sécurité des threads
Tous les membres publics static (Shared dans Visual Basic) de ce type sont thread-safe. Tous les membres de l'instance ne sont pas garantis comme étant thread-safe.
Voir aussi
Référence
Espace de noms Microsoft.SqlServer.Management.Smo
Autres ressources
Utilisation de fichiers ou de groupes de fichiers pour stocker des données