LogFile 类
The LogFile object represents a SQL Server log file.
继承层次结构
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
命名空间: Microsoft.SqlServer.Management.Smo
程序集: Microsoft.SqlServer.Smo(在 Microsoft.SqlServer.Smo.dll 中)
语法
声明
<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)> _
<PhysicalFacetAttribute> _
Public NotInheritable Class LogFile _
Inherits DatabaseFile _
Implements ICreatable, ISfcSupportsDesignMode
用法
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
LogFile 类型公开以下成员。
构造函数
名称 | 说明 | |
---|---|---|
![]() |
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. |
![]() |
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. |
页首
属性
名称 | 说明 | |
---|---|---|
![]() |
BytesReadFromDisk | Gets the number of bytes read from disk. |
![]() |
BytesWrittenToDisk | Gets the number of bytes written to disk. |
![]() |
FileName | Gets or sets the file name of the log file. |
![]() |
Growth | Gets or sets the growth increment for the log file in KB or percent. |
![]() |
GrowthType | Gets or sets the growth type for the data file in KB or percent. |
![]() |
ID | Gets the ID value that uniquely identifies the log file. |
![]() |
IsOffline | Gets the Boolean value that specifies whether the log file is offline or not. |
![]() |
IsReadOnly | Gets the Boolean value that specifies whether the log file is read-only or can be updated. |
![]() |
IsReadOnlyMedia | Gets the Boolean value that specifies whether the log file is stored on read-only media. |
![]() |
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. (从 NamedSmoObject 继承。) |
![]() |
NumberOfDiskReads | Gets an Int64 value that specifies the number of disk reads. |
![]() |
NumberOfDiskWrites | Gets an Int64 value that specifies the number of disk writes. |
![]() |
Parent | Gets or sets the Database object that is the parent of the LogFile object. |
![]() |
Properties | Gets a collection of Property objects that represent the object properties. (从 SqlSmoObject 继承。) |
![]() |
Size | Gets or sets the current size of the log file, in KB. |
![]() |
State | Gets the state of the referenced object. (从 SmoObjectBase 继承。) |
![]() |
Urn | Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. (从 SqlSmoObject 继承。) |
![]() |
UsedSpace | Gets the amount of used space in the log file in KB. |
![]() |
UserData | Gets or sets user-defined data associated with the referenced object. (从 SmoObjectBase 继承。) |
![]() |
VolumeFreeSpace | Gets an Int64 value that specifies the volume free space in bytes. |
页首
方法
名称 | 说明 | |
---|---|---|
![]() |
Alter | Updates any property changes to the object to the instance of Microsoft SQL Server. (从 DatabaseFile 继承。) |
![]() |
Create | Creates a log file on the instance of SQL Server as defined by the LogFile object. |
![]() |
Discover | Discovers a list of type Object. (从 SqlSmoObject 继承。) |
![]() |
Drop | Drops a database file. (从 DatabaseFile 继承。) |
![]() |
Equals | (从 Object 继承。) |
![]() |
FormatSqlVariant | Formats an object as SqlVariant type. (从 SqlSmoObject 继承。) |
![]() |
GetContextDB | Gets the context database that is associated with this object. (从 SqlSmoObject 继承。) |
![]() |
GetDBName | Gets the database name that is associated with the object. (从 SqlSmoObject 继承。) |
![]() |
GetHashCode | (从 Object 继承。) |
![]() |
GetPropValue | Gets a property value of the SqlSmoObject object. (从 SqlSmoObject 继承。) |
![]() |
GetPropValueOptional | Gets a property value of the SqlSmoObject object. (从 SqlSmoObject 继承。) |
![]() |
GetPropValueOptionalAllowNull | Gets a property value of the SqlSmoObject object. (从 SqlSmoObject 继承。) |
![]() |
GetServerObject | Gets the server of the SqlSmoObject object. (从 SqlSmoObject 继承。) |
![]() |
GetType | (从 Object 继承。) |
![]() |
Initialize() | Initializes the object and forces the properties be loaded. (从 SqlSmoObject 继承。) |
![]() |
Initialize(Boolean) | Initializes the object and forces the properties be loaded. (从 SqlSmoObject 继承。) |
![]() |
IsObjectInitialized | Verifies whether the object has been initialized. (从 SqlSmoObject 继承。) |
![]() |
IsObjectInSpace | Verifies whether the object is isolated or connected to the instance of SQL Server. (从 SqlSmoObject 继承。) |
![]() |
MarkForDrop | Marks the database file to be dropped next time its parent object is altered by the Alter method. (从 DatabaseFile 继承。) |
![]() |
Refresh | Refreshes the object and retrieves properties when the object is next accessed. (从 SqlSmoObject 继承。) |
![]() |
Rename | Renames a database file. (从 DatabaseFile 继承。) |
![]() |
SetParentImpl | Sets the parent of the SqlSmoObject to the newParent parameter. (从 SqlSmoObject 继承。) |
![]() |
Shrink | Shrinks a database file. (从 DatabaseFile 继承。) |
![]() |
ToString | Returns a String that represents the referenced object. (从 SqlSmoObject 继承。) |
![]() |
Validate | Validates the state of an object. (从 SmoObjectBase 继承。) |
页首
事件
名称 | 说明 | |
---|---|---|
![]() |
PropertyChanged | Represents the event that occurs when a property is changed. (从 SqlSmoObject 继承。) |
![]() |
PropertyMetadataChanged | Represents the event that occurs when property metadata changes. (从 SqlSmoObject 继承。) |
页首
显式接口实现
名称 | 说明 | |
---|---|---|
![]() ![]() |
IAlienObject.Discover | Discovers any dependencies. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 (从 SqlSmoObject 继承。) |
![]() ![]() |
IAlienObject.GetDomainRoot | Returns the root of the domain. (从 SqlSmoObject 继承。) |
![]() ![]() |
IAlienObject.GetParent | Gets the parent of this object. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 (从 SqlSmoObject 继承。) |
![]() ![]() |
IAlienObject.GetPropertyType | Gets the type of the specified property. (从 SqlSmoObject 继承。) |
![]() ![]() |
IAlienObject.GetPropertyValue | Gets the value of the specified property. (从 SqlSmoObject 继承。) |
![]() ![]() |
IAlienObject.GetUrn | Gets the Unified Resource Name (URN) of the object. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 (从 SqlSmoObject 继承。) |
![]() ![]() |
IAlienObject.Resolve | Gets the instance that contains the information about the object from the Unified Resource Name (URN) of the object. (从 SqlSmoObject 继承。) |
![]() ![]() |
IAlienObject.SetObjectState | Sets the object state to the specified SfcObjectState value. (从 SqlSmoObject 继承。) |
![]() ![]() |
IAlienObject.SetPropertyValue | Sets the property value. (从 SqlSmoObject 继承。) |
![]() ![]() |
ISfcPropertyProvider.GetPropertySet | Gets the interface reference to the set of properties of this object. (从 SqlSmoObject 继承。) |
![]() ![]() |
ISfcSupportsDesignMode.IsDesignMode | Gets a Boolean value that specifies whether the object supports design mode. |
页首
注释
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
此类型的任何公共静态(Microsoft Visual Basic 中的 Shared)成员在多线程操作中是安全的。但不保证所有实例成员都是线程安全的。
示例
线程安全
此类型的任何公共 static(在 Visual Basic 中为 Shared) 成员都是线程安全的。不保证所有实例成员都是线程安全的。
请参阅
参考
Microsoft.SqlServer.Management.Smo 命名空间