DataFile 클래스

The DataFile object represents a SQL Server data file.

상속 계층

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.DataFile

네임스페이스:  Microsoft.SqlServer.Management.Smo
어셈블리:  Microsoft.SqlServer.Smo(Microsoft.SqlServer.Smo.dll)

구문

‘선언
<PhysicalFacetAttribute> _
<SfcElementTypeAttribute("File")> _
<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)> _
Public NotInheritable Class DataFile _
    Inherits DatabaseFile _
    Implements ICreatable, ISfcSupportsDesignMode
‘사용 방법
Dim instance As DataFile

[PhysicalFacetAttribute]
[SfcElementTypeAttribute("File")]
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)]
public sealed class DataFile : DatabaseFile, 
    ICreatable, ISfcSupportsDesignMode

[PhysicalFacetAttribute]
[SfcElementTypeAttribute(L"File")]
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode::CheckOnSchedule)]
public ref class DataFile sealed : public DatabaseFile, 
    ICreatable, ISfcSupportsDesignMode

[<SealedAttribute>]
[<PhysicalFacetAttribute>]
[<SfcElementTypeAttribute("File")>]
[<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)>]
type DataFile =  
    class 
        inherit DatabaseFile 
        interface ICreatable 
        interface ISfcSupportsDesignMode 
    end

public final class DataFile extends DatabaseFile implements ICreatable, ISfcSupportsDesignMode

DataFile 유형에서 다음 멤버를 표시합니다.

생성자

	이름	설명
	DataFile()	Initializes a new instance of the DataFile class.
	DataFile(FileGroup, String)	Initializes a new instance of the DataFile class on the specified file group with the specified name.
	DataFile(FileGroup, String, String)	Initializes a new instance of the DataFile class on the specified file group with the specified name and file name.

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속성

	이름	설명
	AvailableSpace	Gets the amount of available space in the data file in KB.
	BytesReadFromDisk	Gets the number of bytes read from disk.
	BytesWrittenToDisk	Gets the number of bytes written to disk.
	FileName	Gets or sets the data file name.
	Growth	Gets or sets the growth increment for the data file in KB or percent.
	GrowthType	Gets or sets the growth type for the data file in kilobytes or percent.
	ID	Gets the ID value that uniquely identifies the data file.
	IsOffline	Gets the Boolean property value that specifies whether the data file is offline or not.
	IsPrimaryFile	Gets the Boolean property value that specifies whether the data file is the primary file of the database.
	IsReadOnly	Gets the Boolean property value that specifies whether the data file is read-only or can be updated.
	IsReadOnlyMedia	Gets the Boolean property value that specifies whether the data 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 data file can grow in KB.
	Name	Gets or sets the name of the object. (NamedSmoObject에서 상속됨)
	NumberOfDiskReads	Gets the number of disk reads.
	NumberOfDiskWrites	Gets the number of disk writes.
	Parent	Gets or sets the FileGroup object that is the parent of the DataFile object.
	Properties	Gets a collection of Property objects that represent the object properties. (SqlSmoObject에서 상속됨)
	Size	Gets or sets the current size of the data file in KB.
	State	Gets the state of the referenced object. (SmoObjectBase에서 상속됨)
	Urn	Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. (SqlSmoObject에서 상속됨)
	UsedSpace	Gets the amount of used space in the data file in KB.
	UserData	Gets or sets user-defined data associated with the referenced object. (SmoObjectBase에서 상속됨)
	VolumeFreeSpace	Gets the volume free space in bytes.

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메서드

	이름	설명
	Alter	Updates any property changes to the object to the instance of Microsoft SQL Server. (DatabaseFile에서 상속됨)
	Create	Creates a data file on the instance of SQL Server as defined by the DataFile object.
	Discover	Discovers a list of type Object. (SqlSmoObject에서 상속됨)
	Drop	Drops a database file. (DatabaseFile에서 상속됨)
	Equals	(Object에서 상속됨)
	FormatSqlVariant	Formats an object as SqlVariant type. (SqlSmoObject에서 상속됨)
	GetContextDB	Gets the context database that is associated with this object. (SqlSmoObject에서 상속됨)
	GetDBName	Gets the database name that is associated with the object. (SqlSmoObject에서 상속됨)
	GetHashCode	(Object에서 상속됨)
	GetPropValue	Gets a property value of the SqlSmoObject object. (SqlSmoObject에서 상속됨)
	GetPropValueOptional	Gets a property value of the SqlSmoObject object. (SqlSmoObject에서 상속됨)
	GetPropValueOptionalAllowNull	Gets a property value of the SqlSmoObject object. (SqlSmoObject에서 상속됨)
	GetServerObject	Gets the server of the SqlSmoObject object. (SqlSmoObject에서 상속됨)
	GetType	(Object에서 상속됨)
	Initialize()	Initializes the object and forces the properties be loaded. (SqlSmoObject에서 상속됨)
	Initialize(Boolean)	Initializes the object and forces the properties be loaded. (SqlSmoObject에서 상속됨)
	IsObjectInitialized	Verifies whether the object has been initialized. (SqlSmoObject에서 상속됨)
	IsObjectInSpace	Verifies whether the object is isolated or connected to the instance of SQL Server. (SqlSmoObject에서 상속됨)
	MarkForDrop	Marks the database file to be dropped next time its parent object is altered by the Alter method. (DatabaseFile에서 상속됨)
	Refresh	Refreshes the object and retrieves properties when the object is next accessed. (SqlSmoObject에서 상속됨)
	Rename	Renames a database file. (DatabaseFile에서 상속됨)
	SetOffline	Sets the database file status to offline.
	SetParentImpl	Sets the parent of the SqlSmoObject to the newParent parameter. (SqlSmoObject에서 상속됨)
	Shrink	Shrinks a database file. (DatabaseFile에서 상속됨)
	ToString	Returns a String that represents the referenced object. (SqlSmoObject에서 상속됨)
	Validate	Validates the state of an object. (SmoObjectBase에서 상속됨)

맨 위로 이동

이벤트

	이름	설명
	PropertyChanged	Represents the event that occurs when a property is changed. (SqlSmoObject에서 상속됨)
	PropertyMetadataChanged	Represents the event that occurs when property metadata changes. (SqlSmoObject에서 상속됨)

맨 위로 이동

명시적 인터페이스 구현

	이름	설명
	IAlienObject.Discover	Discovers any dependencies. 코드에서 직접 이 멤버를 참조하면 안 됩니다. 이 방법은 SQL Server 인프라를 지원합니다. (SqlSmoObject에서 상속됨)
	IAlienObject.GetDomainRoot	Returns the root of the domain. (SqlSmoObject에서 상속됨)
	IAlienObject.GetParent	Gets the parent of this object. 코드에서 직접 이 멤버를 참조하면 안 됩니다. 이 방법은 SQL Server 인프라를 지원합니다. (SqlSmoObject에서 상속됨)
	IAlienObject.GetPropertyType	Gets the type of the specified property. (SqlSmoObject에서 상속됨)
	IAlienObject.GetPropertyValue	Gets the value of the specified property. (SqlSmoObject에서 상속됨)
	IAlienObject.GetUrn	Gets the Unified Resource Name (URN) of the object. 코드에서 직접 이 멤버를 참조하면 안 됩니다. 이 방법은 SQL Server 인프라를 지원합니다. (SqlSmoObject에서 상속됨)
	IAlienObject.Resolve	Gets the instance that contains the information about the object from the Unified Resource Name (URN) of the object. (SqlSmoObject에서 상속됨)
	IAlienObject.SetObjectState	Sets the object state to the specified SfcObjectState value. (SqlSmoObject에서 상속됨)
	IAlienObject.SetPropertyValue	Sets the property value. (SqlSmoObject에서 상속됨)
	ISfcPropertyProvider.GetPropertySet	Gets the interface reference to the set of properties of this object. (SqlSmoObject에서 상속됨)
	ISfcSupportsDesignMode.IsDesignMode	Gets a Boolean value that indicates whether the object supports design mode.

맨 위로 이동

주의

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

To set the DataFile object properties, users must have ALTER permission on the database or be a member of the db_owner fixed database role.

To create a data file, users must have ALTER permission on the database or be a member of the db_owner fixed database role.

To drop a data file, users must have ALTER permission on the database or be a member of the db_owner fixed database role.

Thread Safety

이 유형의 모든 public static(Microsoft Visual Basic의 경우 공유) 멤버는 다중 스레드 작업을 수행하기에 안전합니다. 인스턴스 멤버는 스레드로부터의 안전성이 보장되지 않습니다.

예

파일 그룹 및 파일을 사용하여 데이터 저장

스레드 보안

이 유형의 모든 공용 static(Visual Basic에서는 Shared) 멤버는 스레드로부터 안전합니다. 인스턴스 멤버는 스레드로부터의 안전성이 보장되지 않습니다.

참고 항목

참조

Microsoft.SqlServer.Management.Smo 네임스페이스

관련 자료

파일 및 파일 그룹 아키텍처

CREATE DATABASE(Transact-SQL)