Classe JobSchedule

The JobSchedule class represents a SQL Server Agent job schedule.

Gerarchia di ereditarietà

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

Spazio dei nomi  Microsoft.SqlServer.Management.Smo.Agent
Assembly:  Microsoft.SqlServer.Smo (in Microsoft.SqlServer.Smo.dll)

Sintassi

'Dichiarazione
<SfcElementTypeAttribute("Schedule")> _
Public NotInheritable Class JobSchedule _
    Inherits ScheduleBase _
    Implements IAlterable, ICreatable, IDroppable, IRenamable,  _
    IScriptable
'Utilizzo
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

Nel tipo JobSchedule sono esposti i membri seguenti.

Costruttori

	Nome	Descrizione
	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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Proprietà

	Nome	Descrizione
	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.
	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. Ereditato da ScheduleBase.
	IsEnabled	Gets or sets the Boolean property value that specifies whether the job schedule is enabled or disabled.
	JobCount	Gets the number of jobs that require the referenced job schedule.
	Name	Gets or sets the name of the object. Ereditato da NamedSmoObject.
	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. Ereditato da SqlSmoObject.
	ScheduleUid	Gets or sets a Guid which represents the unique identifier of the schedule.
	State	Gets the state of the referenced object. Ereditato da SmoObjectBase.
	Urn	Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. Ereditato da SqlSmoObject.
	UserData	Gets or sets user-defined data associated with the referenced object. Ereditato da SmoObjectBase.

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Metodi

	Nome	Descrizione
	Alter	Updates any JobSchedule object property changes on an instance of Microsoft SQL Server.
	Create	Creates a job schedule on the instance of SQL Server as defined by the JobSchedule object.
	Discover	Discovers a list of type Object. Ereditato da SqlSmoObject.
	Drop()	Removes the referenced job schedule.
	Drop(Boolean)	Removes the referenced job schedule.
	EnumJobReferences	Returns an enumerated list of jobs that reference the schedule.
	Equals	Ereditato da Object.
	FormatSqlVariant	Formats an object as SqlVariant type. Ereditato da SqlSmoObject.
	GetContextDB	Gets the context database that is associated with this object. Ereditato da SqlSmoObject.
	GetDBName	Gets the database name that is associated with the object. Ereditato da AgentObjectBase.
	GetHashCode	Ereditato da Object.
	GetPropValue	Gets a property value of the SqlSmoObject object. Ereditato da SqlSmoObject.
	GetPropValueOptional	Gets a property value of the SqlSmoObject object. Ereditato da SqlSmoObject.
	GetPropValueOptionalAllowNull	Gets a property value of the SqlSmoObject object. Ereditato da SqlSmoObject.
	GetServerObject	Gets the server of the SqlSmoObject object. Ereditato da SqlSmoObject.
	GetType	Ereditato da Object.
	Initialize()	Initializes the object and forces the properties be loaded. Ereditato da SqlSmoObject.
	Initialize(Boolean)	Initializes the object and forces the properties be loaded. Ereditato da SqlSmoObject.
	IsObjectInitialized	Verifies whether the object has been initialized. Ereditato da SqlSmoObject.
	IsObjectInSpace	Verifies whether the object is isolated or connected to the instance of SQL Server. Ereditato da SqlSmoObject.
	Refresh	Refreshes the object and retrieves properties when the object is next accessed. Ereditato da SqlSmoObject.
	Rename	Renames the job schedule.
	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.
	SetParentImpl	Sets the parent of the SqlSmoObject to the newParent parameter. Ereditato da SqlSmoObject.
	ToString	Returns a String that represents the referenced object. Ereditato da SqlSmoObject.
	Validate	Validates the state of an object. Ereditato da SmoObjectBase.

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Eventi

	Nome	Descrizione
	PropertyChanged	Represents the event that occurs when a property is changed. Ereditato da SqlSmoObject.
	PropertyMetadataChanged	Represents the event that occurs when property metadata changes. Ereditato da SqlSmoObject.

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Implementazioni esplicite dell'interfaccia

	Nome	Descrizione
	IAlienObject.Discover	Discovers any dependencies. Non fare riferimento direttamente a questo membro nel codice. Supporta l'infrastruttura di SQL Server. Ereditato da SqlSmoObject.
	IAlienObject.GetDomainRoot	Returns the root of the domain. Ereditato da SqlSmoObject.
	IAlienObject.GetParent	Gets the parent of this object. Non fare riferimento direttamente a questo membro nel codice. Supporta l'infrastruttura di SQL Server. Ereditato da SqlSmoObject.
	IAlienObject.GetPropertyType	Gets the type of the specified property. Ereditato da SqlSmoObject.
	IAlienObject.GetPropertyValue	Gets the value of the specified property. Ereditato da SqlSmoObject.
	IAlienObject.GetUrn	Gets the Unified Resource Name (URN) of the object. Non fare riferimento direttamente a questo membro nel codice. Supporta l'infrastruttura di SQL Server. Ereditato da SqlSmoObject.
	IAlienObject.Resolve	Gets the instance that contains the information about the object from the Unified Resource Name (URN) of the object. Ereditato da SqlSmoObject.
	IAlienObject.SetObjectState	Sets the object state to the specified SfcObjectState value. Ereditato da SqlSmoObject.
	IAlienObject.SetPropertyValue	Sets the property value. Ereditato da SqlSmoObject.
	ISfcPropertyProvider.GetPropertySet	Gets the interface reference to the set of properties of this object. Ereditato da SqlSmoObject.

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Osservazioni

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

Tutti i membri statici pubblici (Shared in Microsoft Visual Basic) di questo tipo sono sicuri per le operazioni a thread multipli. Non è invece garantita la sicurezza dei membri dell'istanza.

Esempi

Pianificazione delle attività amministrative automatiche in SQL Server Agent

Protezione dei thread

I membri static (Shared in Visual Basic) pubblici di questo tipo sono affidabili. Non è invece garantita la sicurezza dei membri dell'istanza.

Vedere anche

Riferimento

Spazio dei nomi Microsoft.SqlServer.Management.Smo.Agent

Altre risorse

Automatizzazione delle attività amministrative (SQL Server Agent)

sp_add_schedule (Transact-SQL)