项目
12/14/2010

JobSchedule 类

The JobSchedule class represents a SQL Server Agent job schedule.

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. . :: . .ScheduleBase
            Microsoft.SqlServer.Management.Smo.Agent..::..JobSchedule

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
<SfcElementTypeAttribute("Schedule")> _
Public NotInheritable Class JobSchedule _
    Inherits ScheduleBase _
    Implements IAlterable, ICreatable, IDroppable, IRenamable,  _
    IScriptable
用法
Dim instance As JobSchedule

[SfcElementTypeAttribute("Schedule")]
public sealed class JobSchedule : ScheduleBase, 
    IAlterable, ICreatable, IDroppable, IRenamable, IScriptable

[SfcElementTypeAttribute(L"Schedule")]
public ref class JobSchedule sealed : public ScheduleBase, 
    IAlterable, ICreatable, IDroppable, IRenamable, IScriptable

[<SealedAttribute>]
[<SfcElementTypeAttribute("Schedule")>]
type JobSchedule =  
    class
        inherit ScheduleBase
        interface IAlterable
        interface ICreatable
        interface IDroppable
        interface IRenamable
        interface IScriptable
    end

public final class JobSchedule extends ScheduleBase implements IAlterable, ICreatable, IDroppable, IRenamable, IScriptable

JobSchedule 类型公开以下成员。

构造函数

	名称	说明
	JobSchedule() () () ()	Initializes a new instance of the JobSchedule class.
	JobSchedule(SqlSmoObject, String)	Initializes a new instance of the JobSchedule class for the specified parent object and that has the specified name.

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属性

	名称	说明
	ActiveEndDate	Gets or sets the date and time when the schedule ends.
	ActiveEndTimeOfDay	Gets or sets the time when the job schedule stops for the day.
	ActiveStartDate	Gets or sets the date and time when the schedule starts.
	ActiveStartTimeOfDay	Gets or sets the time when the job schedule starts for the day.
	DateCreated	Gets the date and time when the job schedule was created.
	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。）
	FrequencyInterval	Gets or sets the frequency interval, which determines how often the job is scheduled to run.
	FrequencyRecurrenceFactor	Gets or sets the number of weeks or months between scheduled jobs for schedules with a weekly or monthly frequency type, respectively.
	FrequencyRelativeIntervals	Gets or sets the ordinal value of a day relative to the first day of the month, such as first, second, or last.
	FrequencySubDayInterval	Gets or sets the interval between scheduled jobs that run during the day.
	FrequencySubDayTypes	Gets or sets the unit of time used to specify the interval between scheduled jobs that run during the day.
	FrequencyTypes	Gets or sets the way in which frequency is evaluated for the job schedule, whether it's one time only, or weekly, or when the processor is idle, for example.
	ID	Gets the ID value that uniquely identifies the schedule. （从 ScheduleBase 继承。）
	IsEnabled	Gets or sets the Boolean property value that specifies whether the job schedule is enabled or disabled.
	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。）
	JobCount	Gets the number of jobs that require the referenced job schedule.
	Name	Gets or sets the name of the object. （从 NamedSmoObject 继承。）
	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。）
	Parent	Gets or sets the Job object that is the parent of the JobSchedule object.
	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。）
	ScheduleUid
	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。）

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方法

	名称	说明
	AddDatabaseContext	（从 SqlSmoObject 继承。）
	Alter	Updates any JobSchedule object property changes on an 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 a job schedule on the instance of SQL Server as defined by the JobSchedule object.
	CreateImpl	（从 SqlSmoObject 继承。）
	CreateImplFinish	（从 SqlSmoObject 继承。）
	CreateImplInit	（从 SqlSmoObject 继承。）
	Discover	（从 SqlSmoObject 继承。）
	Drop() () () ()	Removes the referenced job schedule.
	Drop(Boolean)
	DropImpl	（从 SqlSmoObject 继承。）
	DropImplWorker	（从 SqlSmoObject 继承。）
	EnumJobReferences	Returns an enumerated list of jobs that reference the schedule.
	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。）
	Rename	Renames the job schedule.
	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。）
	Script() () () ()	Generates a Transact-SQL script that can be used to re-create the SQL Server Agent job schedule.
	Script(ScriptingOptions)	Generates a Transact-SQL script that can be used to re-create the SQL Server Agent job schedule 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。）
	SetId	（从 ScheduleBase 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。）
	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

SQL Server Agent jobs can be scheduled to run by using SQL Server Agent. Jobs can be scheduled to run when SQL Server Agent is enabled, but jobs are not required to be scheduled. They can be run on demand by a sufficiently privileged user. Jobs can have more than one active schedule. SQL Server Agent evaluates all schedules to determine when to run the job. By using the JobSchedule object, you can do the following:

Create a schedule for a SQL Server Agent job.
Remove a schedule from an existing SQL Server Agent job.
Manage job schedules either by enabling a schedule or adjusting run times or frequencies.

To get or set JobSchedule object properties, users must be a member of the SQLAgentUserRole database role on the MSDB database, or be the owner of the job, or be a member of the sysadmin fixed server role.

To create a job schedule, users must be a member of the SQLAgentUserRole database role on the MSDB database, or be a member of the sysadmin fixed server role.

To drop a job schedule, users must be a member of the SQLAgentUserRole database role on the MSDB database, or 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

自动执行管理任务（SQL Server 代理）

sp_add_schedule (Transact-SQL)