Alert 类

The Alert class represents a Microsoft SQL Server Agent alert.

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.Agent. . :: . .AgentObjectBase
          Microsoft.SqlServer.Management.Smo.Agent..::..Alert

命名空间：  Microsoft.SqlServer.Management.Smo.Agent
程序集：  Microsoft.SqlServer.Smo（在 Microsoft.SqlServer.Smo.dll 中）

语法

声明
Public NotInheritable Class Alert _
    Inherits AgentObjectBase _
    Implements ICreatable, IDroppable, IAlterable, IRenamable,  _
    IScriptable
用法
Dim instance As Alert

public sealed class Alert : AgentObjectBase, 
    ICreatable, IDroppable, IAlterable, IRenamable, IScriptable

public ref class Alert sealed : public AgentObjectBase, 
    ICreatable, IDroppable, IAlterable, IRenamable, IScriptable

[<SealedAttribute>]
type Alert =  
    class
        inherit AgentObjectBase
        interface ICreatable
        interface IDroppable
        interface IAlterable
        interface IRenamable
        interface IScriptable
    end

public final class Alert extends AgentObjectBase implements ICreatable, IDroppable, IAlterable, IRenamable, IScriptable

Alert 类型公开以下成员。

构造函数

	名称	说明
	Alert() () () ()	Initializes a new instance of the Alert class.
	Alert(JobServer, String)	Initializes a new instance of the Alert class on the specified instance of SQL Server Agent and with the specified name

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属性

	名称	说明
	AlertType	Gets the AlertType object value that specifies the type of alert.
	CategoryName	Gets or sets the name of the category to which the alert belongs.
	CountResetDate	Gets or sets the date on which to reset the alert occurrence count back to zero.
	DatabaseName	Gets or sets the name of the database that the alert is monitoring.
	DelayBetweenResponses	Gets or sets the delay between responses in seconds.
	EventDescriptionKeyword	Gets or sets a word or phrase that must appear in the text of an event message that causes the alert to be raised.
	EventSource	Gets the event source text from the application event log.
	ExecuteForScalar	Gets or sets the Boolean property value that specifies whether the object is set to the execute for scalar option. （从 SqlSmoObject 继承。）
	HasNotification	Gets the number of SQL Server Agent operators that are assigned to receive notification when the alert is fired.
	ID	Gets the ID value that uniquely identifies SQL Server Agent.
	IncludeEventDescription	Gets or sets the NotifyMethods object value that specifies the types of notification methods (e-mail, pager, or net send) that can contain alert error text.
	IsEnabled	Gets or sets the Boolean property value that specifies whether the alert is enabled or not.
	IsTouched	Gets the Boolean property value that specifies whether the object properties have been updated but not yet persisted on the server. （从 SqlSmoObject 继承。）
	JobID	Gets or sets the ID value of the SQL Server Agent job that is run in response to the alert being raised.
	JobName	Gets or sets the name of the SQL Server Agent job that is run in response to the alert being raised.
	LastOccurrenceDate	Gets or sets the date on which the alert was last raised.
	LastResponseDate	Gets or sets the date on which the alert last generated a response.
	MessageID	Gets or sets the ID value of the Microsoft SQL Server message that causes the alert to be raised.
	Name	Gets or sets the name of the object. （从 NamedSmoObject 继承。）
	NotificationMessage	Gets or sets the user-supplied text appended to any notification sent in response to an alert being raised.
	ObjectInSpace	Gets the Boolean property value that specifies whether the object exists in isolation, or whether it is directly or indirectly connected to the instance of SQL Server. （从 SqlSmoObject 继承。）
	OccurrenceCount	Gets the number of times the alert has fired since the alert was enabled or since a specified date.
	Parent	Gets or sets the JobServer object that is the parent of the Alert object.
	PerformanceCondition	Gets or sets the performance condition text.
	Properties	Gets a collection of Property objects that represent the object properties. （从 SqlSmoObject 继承。）
	ScalarResult	Gets the scalar result for the referenced object. （从 SqlSmoObject 继承。）
	Severity	Gets or sets the error message severity level that causes the alert to be raised.
	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。）
	UserData	Gets or sets user-defined data associated with the referenced object. （从 SmoObjectBase 继承。）
	WmiEventNamespace	Gets or sets the Windows Management Instrumentation (WMI) namespace for the event.
	WmiEventQuery	Gets or sets the Windows Management Instrumentation (WMI) query for the event.

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方法

	名称	说明
	AddDatabaseContext	（从 SqlSmoObject 继承。）
	AddNotification	Designates an operator that receives a notification message when the alert is raised.
	Alter	Updates any Alert object property changes on instance of Microsoft SQL Server .
	AlterImpl	（从 SqlSmoObject 继承。）
	AlterImplFinish	（从 SqlSmoObject 继承。）
	AlterImplInit	（从 SqlSmoObject 继承。）
	AlterImplWorker	（从 SqlSmoObject 继承。）
	BindDefaultImpl	（从 SqlSmoObject 继承。）
	BindRuleImpl	（从 SqlSmoObject 继承。）
	CheckCollation	（从 SqlSmoObject 继承。）
	CheckObjectState() () () ()	Validates the state of the referenced object. （从 SqlSmoObject 继承。）
	CheckObjectState(Boolean)	Validates the state of the referenced object with the option to specify that an exception is thrown if the object is not yet created. （从 SqlSmoObject 继承。）
	CheckObjectStateImpl	（从 SqlSmoObject 继承。）
	CheckVersion100	（从 SqlSmoObject 继承。）
	CheckVersion80	Checks the validity of the object on SQL Server 2000. （从 SqlSmoObject 继承。）
	CheckVersion80SP3	Checks the validity of the object on SQL Server 2000 SP3. （从 SqlSmoObject 继承。）
	CheckVersion90	Check the validity of the object on SQL Server 2005. （从 SqlSmoObject 继承。）
	CheckVersionBelow90	（从 SqlSmoObject 继承。）
	CleanObject	（从 SqlSmoObject 继承。）
	Create	Creates an alert on the instance of Microsoft SQL Server as defined by the Alert object.
	CreateImpl	（从 SqlSmoObject 继承。）
	CreateImplFinish	（从 SqlSmoObject 继承。）
	CreateImplInit	（从 SqlSmoObject 继承。）
	Discover	（从 SqlSmoObject 继承。）
	Drop	Removes the alert.
	DropImpl	（从 SqlSmoObject 继承。）
	DropImplWorker	（从 SqlSmoObject 继承。）
	EnumNotifications() () () ()	Enumerates a list of all notifications defined on the alert.
	EnumNotifications(String)	Enumerates a list of notification methods defined on the alert that are restricted to the specified operator.
	EnumNotifications(NotifyMethods)
	EnumNotifications(NotifyMethods, String)
	EnumScriptImpl	（从 SqlSmoObject 继承。）
	EnumScriptImplWorker	（从 SqlSmoObject 继承。）
	Equals	（从 Object 继承。）
	Finalize	（从 Object 继承。）
	FormatSqlVariant	（从 SqlSmoObject 继承。）
	GenerateDataSpaceFileStreamScript	（从 SqlSmoObject 继承。）
	GenerateDataSpaceScript	（从 SqlSmoObject 继承。）
	GetBindDefaultScript	（从 SqlSmoObject 继承。）
	GetBindRuleScript	（从 SqlSmoObject 继承。）
	GetBoolParameter(StringBuilder, ScriptingOptions, String, String, Int32%)	（从 SqlSmoObject 继承。）
	GetBoolParameter(StringBuilder, ScriptingOptions, String, String, Int32%, Boolean)	（从 SqlSmoObject 继承。）
	GetDateTimeParameter	（从 SqlSmoObject 继承。）
	GetDateTimeParameterAsInt	（从 SqlSmoObject 继承。）
	GetDBName	Gets the database name that is associated with the object. （从 AgentObjectBase 继承。）
	GetEnumParameter	（从 SqlSmoObject 继承。）
	GetFragOptionString	（从 SqlSmoObject 继承。）
	GetGuidParameter	（从 SqlSmoObject 继承。）
	GetHashCode	（从 Object 继承。）
	GetParameter(StringBuilder, ScriptingOptions, String, String, Int32%)	（从 SqlSmoObject 继承。）
	GetParameter(StringBuilder, ScriptingOptions, String, String, Int32%, Boolean)	（从 SqlSmoObject 继承。）
	GetPropValue	（从 SqlSmoObject 继承。）
	GetPropValueOptional	（从 SqlSmoObject 继承。）
	GetPropValueOptionalAllowNull	（从 SqlSmoObject 继承。）
	GetRealValue	（从 SqlSmoObject 继承。）
	GetScriptingOptionsForCreate	（从 SqlSmoObject 继承。）
	GetServerName	Gets the name of the instance of SQL Server with which the object is associated. （从 SqlSmoObject 继承。）
	GetServerObject	（从 SqlSmoObject 继承。）
	GetSqlServerVersionName	Gets the version name of the instance of SQL Server with which the object is associated. （从 SqlSmoObject 继承。）
	GetStringParameter(StringBuilder, ScriptingOptions, String, String, Int32%)	（从 SqlSmoObject 继承。）
	GetStringParameter(StringBuilder, ScriptingOptions, String, String, Int32%, Boolean)	（从 SqlSmoObject 继承。）
	GetTimeSpanParameterAsInt	（从 SqlSmoObject 继承。）
	GetType	（从 Object 继承。）
	GetUrnRecursive(StringBuilder)	（从 SqlSmoObject 继承。）
	GetUrnRecursive(StringBuilder, UrnIdOption)	（从 SqlSmoObject 继承。）
	ImplInitialize	（从 SqlSmoObject 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。）
	IsObjectDirty	Verifies whether the object properties have been modified and the changes have not yet been persisted on the instance of SQL Server. （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。）
	IsVersion80SP3	（从 SqlSmoObject 继承。）
	MarkDropped	（从 SqlSmoObject 继承。）
	MarkForDropImpl	（从 SqlSmoObject 继承。）
	MemberwiseClone	（从 Object 继承。）
	PostAlter	（从 SqlSmoObject 继承。）
	PostCreate	（从 SqlSmoObject 继承。）
	PostDrop	（从 SqlSmoObject 继承。）
	Refresh	Refreshes the object and retrieves properties when the object is next accessed. （从 SqlSmoObject 继承。）
	RemoveNotification	Removes the notification of an operator from the alert definition.
	Rename	Renames the alert.
	RenameImpl	This method supports the SMO infrastructure and is not intended to be used directly from your code. （从 NamedSmoObject 继承。）
	RenameImplWorker	This method supports the SMO infrastructure and is not intended to be used directly from your code. （从 NamedSmoObject 继承。）
	ResetOccurrenceCount	Resets the alert occurrence count back to zero.
	Script() () () ()	Generates a Transact-SQL script that can be used to re-create the Microsoft SQL Server Agent alert.
	Script(ScriptingOptions)	Generates a Transact-SQL script that can be used to re-create the Microsoft SQL Server Agent alert as specified by the scripting options.
	ScriptAlter	（从 SqlSmoObject 继承。）
	ScriptChangeOwner	This method supports the SMO infrastructure and is not intended to be used directly from your code. （从 NamedSmoObject 继承。）
	ScriptCreate	（从 SqlSmoObject 继承。）
	ScriptDdl	（从 SqlSmoObject 继承。）
	ScriptDrop	（从 SqlSmoObject 继承。）
	ScriptImpl() () () ()	（从 SqlSmoObject 继承。）
	ScriptImpl(ScriptingOptions)	（从 SqlSmoObject 继承。）
	ScriptImplWorker	（从 SqlSmoObject 继承。）
	ScriptRename	This method supports the SMO infrastructure and is not intended to be used directly from your code. （从 NamedSmoObject 继承。）
	SetParentImpl	（从 SqlSmoObject 继承。）
	ToString	Returns a String that represents the referenced object. （从 SqlSmoObject 继承。）
	TouchImpl	（从 SqlSmoObject 继承。）
	UnbindDefaultImpl	（从 SqlSmoObject 继承。）
	UnbindRuleImpl	（从 SqlSmoObject 继承。）
	UpdateNotification	Changes the notification method associated with an operator for the alert.
	Validate	（从 SmoObjectBase 继承。）

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事件

	名称	说明
	PropertyChanged	（从 SqlSmoObject 继承。）
	PropertyMetadataChanged	（从 SqlSmoObject 继承。）

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字段

	名称	说明
	m_ExtendedProperties	（从 SqlSmoObject 继承。）

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显式接口实现

	名称	说明
	IAlienObjectDiscover	（从 SqlSmoObject 继承。）
	IAlienObjectGetParent	（从 SqlSmoObject 继承。）
	IAlienObjectGetProperty	（从 SqlSmoObject 继承。）
	ISfcPropertyProviderGetPropertySet	（从 SqlSmoObject 继承。）
	IAlienObjectGetUrn	（从 SqlSmoObject 继承。）
	IAlienObjectResolve	（从 SqlSmoObject 继承。）
	IAlienObjectSetProperty	（从 SqlSmoObject 继承。）

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注释

To get or set Alert object properties, users must be a member of the sysadmin fixed server role.

To create or drop an Alert users must be a member of the sysadmin fixed server 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。 不保证所有实例成员都对于线程安全的。

示例

在 SQL Server 代理中计划自动管理任务

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.Agent 命名空间

其他资源

在 SQL Server 代理中计划自动管理任务

自动执行管理任务（SQL Server 代理）

sp_add_alert (Transact-SQL)