Класс Trigger

Статья
04/26/2013

The Trigger object represents a SQL Server trigger.

Иерархия наследования

System.Object
  Microsoft.SqlServer.Management.Smo.SmoObjectBase
    Microsoft.SqlServer.Management.Smo.SqlSmoObject
      Microsoft.SqlServer.Management.Smo.NamedSmoObject
        Microsoft.SqlServer.Management.Smo.ScriptNameObjectBase
          Microsoft.SqlServer.Management.Smo.Trigger

Пространство имен: Microsoft.SqlServer.Management.Smo
Сборка: Microsoft.SqlServer.Smo (в Microsoft.SqlServer.Smo.dll)

Синтаксис

'Декларация
<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)> _
<PhysicalFacetAttribute(PhysicalFacetOptions.ReadOnly)> _
Public NotInheritable Class Trigger _
    Inherits ScriptNameObjectBase _
    Implements ICreatable, IAlterable, IDroppable, IMarkForDrop,  _
    IExtendedProperties, IScriptable, ITextObject, ISfcSupportsDesignMode
'Применение
Dim instance As Trigger

[EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)]
[PhysicalFacetAttribute(PhysicalFacetOptions.ReadOnly)]
public sealed class Trigger : ScriptNameObjectBase, 
    ICreatable, IAlterable, IDroppable, IMarkForDrop, IExtendedProperties, 
    IScriptable, ITextObject, ISfcSupportsDesignMode

[EvaluationModeAttribute(AutomatedPolicyEvaluationMode::CheckOnSchedule)]
[PhysicalFacetAttribute(PhysicalFacetOptions::ReadOnly)]
public ref class Trigger sealed : public ScriptNameObjectBase, 
    ICreatable, IAlterable, IDroppable, IMarkForDrop, IExtendedProperties, 
    IScriptable, ITextObject, ISfcSupportsDesignMode

[<SealedAttribute>]
[<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)>]
[<PhysicalFacetAttribute(PhysicalFacetOptions.ReadOnly)>]
type Trigger =  
    class 
        inherit ScriptNameObjectBase 
        interface ICreatable 
        interface IAlterable 
        interface IDroppable 
        interface IMarkForDrop 
        interface IExtendedProperties 
        interface IScriptable 
        interface ITextObject 
        interface ISfcSupportsDesignMode 
    end

public final class Trigger extends ScriptNameObjectBase implements ICreatable, IAlterable, IDroppable, IMarkForDrop, IExtendedProperties, IScriptable, ITextObject, ISfcSupportsDesignMode

Тип Trigger обеспечивает доступ к следующим элементам.

Конструкторы

	Имя	Описание
	Trigger()	Initializes a new instance of the Trigger class.
	Trigger(SqlSmoObject, String)	Initializes a new instance of the Trigger class on the specified object, and with the specified name.

В начало

Свойства

	Имя	Описание
	AnsiNullsStatus	Gets the Boolean property value that specifies whether ISO NULL handling is enabled in the trigger.
	AssemblyName	Gets or sets the name of the .NET assembly that is required by the referenced trigger.
	ClassName	Gets or sets the name of the class that is called by the referenced trigger.
	CreateDate	Gets the date and time when the trigger was created.
	DateLastModified	Gets the date and time when the trigger was last modified.
	Delete	Gets or sets the Boolean property value that specifies whether the trigger is executed when records are deleted from the table.
	DeleteOrder	Gets or sets the order in which the trigger and the delete operation are executed.
	Events	Gets the events that are associated with the trigger.
	ExecutionContext	Gets or sets the execution context.
	ExecutionContextPrincipal	Gets or sets the execution context principal.
	ExtendedProperties	Gets the extended properties of the Trigger object.
	ID	Gets the ID value that uniquely identifies the trigger.
	ImplementationType	Gets or sets the implementation type of the trigger.
	Insert	Gets or sets the Boolean property value that specifies whether the trigger is fired when records are inserted into the table.
	InsertOrder	Gets or sets the order in which the trigger and the insert operation are executed.
	InsteadOf	Gets or sets a Boolean property that specifies whether the trigger runs instead of the insert, delete, or update operation.
	IsEnabled	Gets or sets the Boolean property that specifies whether the trigger is enabled.
	IsEncrypted	Gets or sets the Boolean property value that specifies whether the trigger is encrypted.
	IsSystemObject	Gets the Boolean property value that specifies whether the trigger is a system object.
	MethodName	Gets the method name for the trigger.
	Name	Gets or sets a String value that specifies the name of the trigger. (Переопределяет NamedSmoObject.Name.)
	NotForReplication	Gets or sets a Boolean property value that specifies whether the trigger is included in replication operations.
	Parent	Gets or sets the SqlSmoObject object that is the parent of the Trigger object.
	Properties	Gets a collection of Property objects that represent the object properties. (Производный от SqlSmoObject.)
	QuotedIdentifierStatus	Gets or sets a Boolean property value that specifies whether identifiers delimited by double quotation marks are Transact-SQL reserved keywords or contain characters not usually allowed by the Transact-SQL syntax rules.
	State	Gets the state of the referenced object. (Производный от SmoObjectBase.)
	TextBody	Gets or sets the Transact-SQL string that defines the trigger.
	TextHeader	Gets or sets the header part of the Transact-SQL string that defines the trigger.
	TextMode	Gets or sets the Boolean property that specifies whether the text header is editable as text.
	Update	Gets or sets the Boolean property value that specifies whether the trigger is fired when records are updated in the table.
	UpdateOrder	Gets or sets the order in which the trigger and the update operation are executed.
	Urn	Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. (Производный от SqlSmoObject.)
	UserData	Gets or sets user-defined data associated with the referenced object. (Производный от SmoObjectBase.)

В начало

Методы

	Имя	Описание
	Alter	Updates any Trigger object property changes on instance of Microsoft SQL Server .
	Create	Creates a trigger on the instance of SQL Server as defined by the Trigger object.
	Discover	Discovers a list of type Object. (Производный от SqlSmoObject.)
	Drop	Removes the trigger from the instance of SQL Server .
	Equals	(Производный от Object.)
	FormatSqlVariant	Formats an object as SqlVariant type. (Производный от SqlSmoObject.)
	GetContextDB	Gets the context database that is associated with this object. (Производный от SqlSmoObject.)
	GetDBName	Gets the database name that is associated with the object. (Производный от SqlSmoObject.)
	GetHashCode	(Производный от Object.)
	GetPropValue	Gets a property value of the SqlSmoObject object. (Производный от SqlSmoObject.)
	GetPropValueOptional	Gets a property value of the SqlSmoObject object. (Производный от SqlSmoObject.)
	GetPropValueOptionalAllowNull	Gets a property value of the SqlSmoObject object. (Производный от SqlSmoObject.)
	GetServerObject	Gets the server of the SqlSmoObject object. (Производный от SqlSmoObject.)
	GetType	(Производный от Object.)
	Initialize()	Initializes the object and forces the properties be loaded. (Производный от SqlSmoObject.)
	Initialize(Boolean)	Initializes the object and forces the properties be loaded. (Производный от SqlSmoObject.)
	IsObjectInitialized	Verifies whether the object has been initialized. (Производный от SqlSmoObject.)
	IsObjectInSpace	Verifies whether the object is isolated or connected to the instance of SQL Server. (Производный от SqlSmoObject.)
	MarkForDrop	Marks the trigger to be dropped.
	ReCompileReferences	Recompiles any stored procedure or trigger that depends on the base SMO object.
	Refresh	Refreshes the script name. (Производный от ScriptNameObjectBase.)
	Script()	Generates a Transact-SQL script that can be used to re-create the trigger.
	Script(ScriptingOptions)	Generates a Transact-SQL script that can be used to re-create the trigger as specified by the script options.
	ScriptHeader	Returns the text header with the option to modify the text.
	SetParentImpl	Sets the parent of the SqlSmoObject to the newParent parameter. (Производный от SqlSmoObject.)
	ToString	Returns a String that represents the referenced object. (Производный от SqlSmoObject.)
	Validate	Validates the state of an object. (Производный от SmoObjectBase.)

В начало

События

	Имя	Описание
	PropertyChanged	Represents the event that occurs when a property is changed. (Производный от SqlSmoObject.)
	PropertyMetadataChanged	Represents the event that occurs when property metadata changes. (Производный от SqlSmoObject.)

В начало

Явные реализации интерфейса

	Имя	Описание
	IAlienObject.Discover	Discovers any dependencies. Не ссылайтесь на этот элемент непосредственно из кода. Он поддерживает работу инфраструктуры SQL Server. (Производный от SqlSmoObject.)
	IAlienObject.GetDomainRoot	Returns the root of the domain. (Производный от SqlSmoObject.)
	IAlienObject.GetParent	Gets the parent of this object. Не ссылайтесь на этот элемент непосредственно из кода. Он поддерживает работу инфраструктуры SQL Server. (Производный от SqlSmoObject.)
	IAlienObject.GetPropertyType	Gets the type of the specified property. (Производный от SqlSmoObject.)
	IAlienObject.GetPropertyValue	Gets the value of the specified property. (Производный от SqlSmoObject.)
	IAlienObject.GetUrn	Gets the Unified Resource Name (URN) of the object. Не ссылайтесь на этот элемент непосредственно из кода. Он поддерживает работу инфраструктуры SQL Server. (Производный от SqlSmoObject.)
	IAlienObject.Resolve	Gets the instance that contains the information about the object from the Unified Resource Name (URN) of the object. (Производный от SqlSmoObject.)
	IAlienObject.SetObjectState	Sets the object state to the specified SfcObjectState value. (Производный от SqlSmoObject.)
	IAlienObject.SetPropertyValue	Sets the property value. (Производный от SqlSmoObject.)
	ISfcPropertyProvider.GetPropertySet	Gets the interface reference to the set of properties of this object. (Производный от SqlSmoObject.)
	ISfcSupportsDesignMode.IsDesignMode	Gets a Boolean value that specifies whether the trigger supports design mode.

В начало

Замечания

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

To set Trigger object properties, users must have ALTER permission on the parent table or view.

To create or drop a trigger, users must have ALTER permission on the parent table or view.

To grant, deny, or revoke permission on the trigger to other users, users must have CONTROL permission on the trigger.

Thread Safety

Все общие статические члены этого типа (Shared в Microsoft Visual Basic) можно использовать в многопоточных операциях. Потокобезопасная работа с членами экземпляров типа не гарантируется.