Classe LogFile
The LogFile object represents a SQL Server log file.
Hierarquia de herança
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
Namespace: Microsoft.SqlServer.Management.Smo
Assembly: Microsoft.SqlServer.Smo (em Microsoft.SqlServer.Smo.dll)
Sintaxe
'Declaração
<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
O tipo LogFile expõe os membros a seguir.
Construtores
| Nome | Descrição | |
|---|---|---|
.gif "Método público") |
LogFile() | Initializes a new instance of the LogFile class. |
|
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. |
Início
Propriedades
| Nome | Descrição | |
|---|---|---|
.gif "Propriedade pública") |
BytesReadFromDisk | Gets the number of bytes read from disk. |
|
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. |
|
MaxSize | Gets or set the maximum size to which the file can grow, in MB. |
|
Name | Gets or sets the name of the object. (Herdado 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. (Herdado de SqlSmoObject.) |
|
Size | Gets or sets the current size of the log file, in KB. |
|
State | Gets the state of the referenced object. (Herdado de SmoObjectBase.) |
|
Urn | Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. (Herdado de SqlSmoObject.) |
|
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. (Herdado de SmoObjectBase.) |
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VolumeFreeSpace | Gets an Int64 value that specifies the volume free space in bytes. |
Início
Métodos
| Nome | Descrição | |
|---|---|---|
|
Alter | Updates any property changes to the object to the instance of Microsoft SQL Server. (Herdado de DatabaseFile.) |
|
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. (Herdado de SqlSmoObject.) |
|
Drop | Drops a database file. (Herdado de DatabaseFile.) |
|
Equals | (Herdado de Object.) |
.gif "Método protegido") |
FormatSqlVariant | Formats an object as SqlVariant type. (Herdado de SqlSmoObject.) |
|
GetContextDB | Gets the context database that is associated with this object. (Herdado de SqlSmoObject.) |
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GetDBName | Gets the database name that is associated with the object. (Herdado de SqlSmoObject.) |
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GetHashCode | (Herdado de Object.) |
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GetPropValue | Gets a property value of the SqlSmoObject object. (Herdado de SqlSmoObject.) |
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GetPropValueOptional | Gets a property value of the SqlSmoObject object. (Herdado de SqlSmoObject.) |
|
GetPropValueOptionalAllowNull | Gets a property value of the SqlSmoObject object. (Herdado de SqlSmoObject.) |
|
GetServerObject | Gets the server of the SqlSmoObject object. (Herdado de SqlSmoObject.) |
|
GetType | (Herdado de Object.) |
|
Initialize() | Initializes the object and forces the properties be loaded. (Herdado de SqlSmoObject.) |
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Initialize(Boolean) | Initializes the object and forces the properties be loaded. (Herdado de SqlSmoObject.) |
|
IsObjectInitialized | Verifies whether the object has been initialized. (Herdado de SqlSmoObject.) |
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IsObjectInSpace | Verifies whether the object is isolated or connected to the instance of SQL Server. (Herdado 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. (Herdado de DatabaseFile.) |
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Refresh | Refreshes the object and retrieves properties when the object is next accessed. (Herdado de SqlSmoObject.) |
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Rename | Renames a database file. (Herdado de DatabaseFile.) |
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SetParentImpl | Sets the parent of the SqlSmoObject to the newParent parameter. (Herdado de SqlSmoObject.) |
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Shrink | Shrinks a database file. (Herdado de DatabaseFile.) |
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ToString | Returns a String that represents the referenced object. (Herdado de SqlSmoObject.) |
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Validate | Validates the state of an object. (Herdado de SmoObjectBase.) |
Início
Eventos
| Nome | Descrição | |
|---|---|---|
.gif "Evento público") |
PropertyChanged | Represents the event that occurs when a property is changed. (Herdado de SqlSmoObject.) |
|
PropertyMetadataChanged | Represents the event that occurs when property metadata changes. (Herdado de SqlSmoObject.) |
Início
Implementações de interfaces explícitas
| Nome | Descrição | |
|---|---|---|
.gif "Implementações de interfaces explícitas") .gif "Método privado") |
IAlienObject.Discover | Discovers any dependencies. Não referencie esse membro diretamente no código. Ele dá suporte à infraestrutura do SQL Server. (Herdado de SqlSmoObject.) |
|
IAlienObject.GetDomainRoot | Returns the root of the domain. (Herdado de SqlSmoObject.) |
|
IAlienObject.GetParent | Gets the parent of this object. Não referencie esse membro diretamente no código. Ele dá suporte à infraestrutura do SQL Server. (Herdado de SqlSmoObject.) |
|
IAlienObject.GetPropertyType | Gets the type of the specified property. (Herdado de SqlSmoObject.) |
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IAlienObject.GetPropertyValue | Gets the value of the specified property. (Herdado de SqlSmoObject.) |
|
IAlienObject.GetUrn | Gets the Unified Resource Name (URN) of the object. Não referencie esse membro diretamente no código. Ele dá suporte à infraestrutura do SQL Server. (Herdado de SqlSmoObject.) |
|
IAlienObject.Resolve | Gets the instance that contains the information about the object from the Unified Resource Name (URN) of the object. (Herdado de SqlSmoObject.) |
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IAlienObject.SetObjectState | Sets the object state to the specified SfcObjectState value. (Herdado de SqlSmoObject.) |
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IAlienObject.SetPropertyValue | Sets the property value. (Herdado de SqlSmoObject.) |
|
ISfcPropertyProvider.GetPropertySet | Gets the interface reference to the set of properties of this object. (Herdado de SqlSmoObject.) |
.gif "Propriedade privada") |
ISfcSupportsDesignMode.IsDesignMode | Gets a Boolean value that specifies whether the object supports design mode. |
Início
Comentários
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
Qualquer membro público estático (Compartilhado no Microsoft Visual Basic) desse tipo é seguro para operações multi-threaded. Não há garantia de que qualquer membro de instância seja seguro para threads.
Exemplos
Usando grupos de arquivos e arquivos para armazenar dados
Segurança de thread
Qualquer membro público static (Shared no Visual Basic) desse tipo é seguro para threads. Não há garantia de que qualquer membro de instância seja seguro para threads.
Consulte também
Referência
Namespace Microsoft.SqlServer.Management.Smo