MasterKey 類別
The MasterKey object represents a SQL Server database master key.
繼承階層
System. . :: . .Object
Microsoft.SqlServer.Management.Smo. . :: . .SmoObjectBase
Microsoft.SqlServer.Management.Smo. . :: . .SqlSmoObject
Microsoft.SqlServer.Management.Smo..::..MasterKey
命名空間： Microsoft.SqlServer.Management.Smo
組件： Microsoft.SqlServer.Smo (在 Microsoft.SqlServer.Smo.dll 中)
語法
'宣告
Public NotInheritable Class MasterKey _
Inherits SqlSmoObject _
Implements ISfcSupportsDesignMode, IDroppable
'用途
Dim instance As MasterKey
public sealed class MasterKey : SqlSmoObject,
ISfcSupportsDesignMode, IDroppable
public ref class MasterKey sealed : public SqlSmoObject,
ISfcSupportsDesignMode, IDroppable
[<SealedAttribute>]
type MasterKey =
class
inherit SqlSmoObject
interface ISfcSupportsDesignMode
interface IDroppable
end
public final class MasterKey extends SqlSmoObject implements ISfcSupportsDesignMode, IDroppable
MasterKey 型別公開下列成員。
建構函式
| 名稱 | 說明 | |
|---|---|---|
.gif "公用方法") |
MasterKey() () () () | Initializes a new instance of the MasterKey class. |
|
MasterKey(Database) | Initializes a new instance of the MasterKey class on the specified database. |
上層
屬性
| 名稱 | 說明 | |
|---|---|---|
.gif "公用屬性") |
CreateDate | Gets the date and time when the master key was created. |
|
DateLastModified | Gets the date and time when the master key was last modified. |
.gif "受保護的屬性") |
ExecuteForScalar | 取得或設定 Boolean 屬性值，指定物件是否設定為執行純量選項。 (繼承自 SqlSmoObject。) |
|
IsEncryptedByServer | Gets the Boolean property value that specifies whether the database master key is encrypted by using the service master key or by using a password. |
|
IsOpen | Gets the Boolean property value that specifies whether the database master key is open. |
|
IsTouched | 取得 Boolean 屬性值，指定物件屬性是否已更新但尚未保存在伺服器上。 (繼承自 SqlSmoObject。) |
|
ObjectInSpace | 取得 Boolean 屬性值，指定物件是否存在於隔離中，或是直接或間接連接至 SQL Server 執行個體。 (繼承自 SqlSmoObject。) |
|
Parent | Gets the Database object that is the parent of the MasterKey object. |
|
Properties | 取得代表物件屬性的 Property 物件集合。 (繼承自 SqlSmoObject。) |
|
ScalarResult | 取得受參考物件的純量結果。 (繼承自 SqlSmoObject。) |
|
State | Gets the state of the referenced object. (繼承自 SmoObjectBase。) |
|
Urn | 取得可唯一識別物件的統一資源名稱 (URN) 位址值。 (繼承自 SqlSmoObject。) |
|
UserData | Gets or sets user-defined data associated with the referenced object. (繼承自 SmoObjectBase。) |
上層
方法
.gif "受保護的方法")
上層
事件
| 名稱 | 說明 | |
|---|---|---|
.gif "公用事件") |
PropertyChanged | 代表屬性變更時所發生的事件。 (繼承自 SqlSmoObject。) |
|
PropertyMetadataChanged | 代表屬性中繼資料變更時所發生的事件。 (繼承自 SqlSmoObject。) |
上層
欄位
| 名稱 | 說明 | |
|---|---|---|
.gif "受保護的欄位") |
m_ExtendedProperties | 代表屬性，此屬性定義為擴充 SqlSmoObject 所提供的屬性。 (繼承自 SqlSmoObject。) |
|
singletonParent | 代表單一父代。 (繼承自 SqlSmoObject。) |
上層
明確 繼承 實作
| 名稱 | 說明 | |
|---|---|---|
.gif "明確介面實作") .gif "私用方法") |
IAlienObject. . :: . .Discover | 探索任何相依性。不要直接在程式碼中參照此成員。其支援 SQL Server 基礎結構。 (繼承自 SqlSmoObject。) |
|
IAlienObject. . :: . .GetDomainRoot | 傳回網域的根目錄。 (繼承自 SqlSmoObject。) |
|
IAlienObject. . :: . .GetParent | 取得此物件的父系。不要直接在程式碼中參照此成員。其支援 SQL Server 基礎結構。 (繼承自 SqlSmoObject。) |
|
IAlienObject. . :: . .GetPropertyType | 取得指定的屬性類型。 (繼承自 SqlSmoObject。) |
|
IAlienObject. . :: . .GetPropertyValue | 取得指定的屬性值。 (繼承自 SqlSmoObject。) |
|
IAlienObject. . :: . .GetUrn | 取得物件的統一資源名稱。不要直接在程式碼中參照此成員。其支援 SQL Server 基礎結構。 (繼承自 SqlSmoObject。) |
|
IAlienObject. . :: . .Resolve | 取得執行個體，其中包含物件統一資源名稱之物件的相關資訊。 (繼承自 SqlSmoObject。) |
|
IAlienObject. . :: . .SetObjectState | 將物件狀態設定為指定的 SfcObjectState 值。 (繼承自 SqlSmoObject。) |
|
IAlienObject. . :: . .SetPropertyValue | 設定屬性值。 (繼承自 SqlSmoObject。) |
|
ISfcPropertyProvider. . :: . .GetPropertySet | 取得此物件屬性集的介面參考。不要直接在程式碼中參照此成員。其支援 SQL Server 基礎結構。 (繼承自 SqlSmoObject。) |
.gif "私用屬性") |
ISfcSupportsDesignMode. . :: . .IsDesignMode | Gets a Boolean value that indicates whether the object supports design mode. 僅供參考之用。不支援。我們無法保證未來的相容性。 |
上層
備註
A database master key is used to symmetrically encrypt keys and certificates that are stored in the database. A database master key can be encrypted by using the service master key or by using a user-specified password. When a database master key is created, a password must be supplied to encrypt and decrypt it.
When a database is attached to an instance of SQL Server, the database administrator must either supply the master key password or make an unencrypted copy of the master key that is available for encryption with the service master key.
The service master key is the top layer in the encryption hierarchy that is used to encrypt lower layers in the encryption hierarchy. The service master key is generated automatically by Windows. It can be opened only by the Windows service account under which it was created, or by a user who knows both the service account name and its password.
To get MasterKey object properties, users can be a member of the public fixed server role.
To set MasterKey object properties, users must have CONTROL permission on the database or be a member of the db_owner fixed database role.
To create or drop a master key, users must have CONTROL permission on the database or be a member of the db_owner fixed database role.
To open or regenerate a master key, users must have CONTROL permission on the database or be a member of the db_owner fixed database role.
To add or drop service key encryption, users must have CONTROL permission on the database or be a member of the db_owner fixed database role.
To drop a master key, users can be a member of the public fixed server role.
執行緒安全性
這個型別的任何公用 static (在 Visual Basic 中為 Shared) 成員都是執行緒安全的。並不是所有的執行個體成員都保證可以用於所有的執行緒。