Classe Default

The Default object represents a SQL Server default.

Gerarchia di ereditarietà

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.ScriptSchemaObjectBase
            Microsoft.SqlServer.Management.Smo.DefaultRuleBase
              Microsoft.SqlServer.Management.Smo.Default

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

Sintassi

'Dichiarazione
<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)> _
<PhysicalFacetAttribute> _
Public NotInheritable Class Default _
    Inherits DefaultRuleBase _
    Implements ISfcSupportsDesignMode
'Utilizzo
Dim instance As Default

[EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)]
[PhysicalFacetAttribute]
public sealed class Default : DefaultRuleBase, 
    ISfcSupportsDesignMode

[EvaluationModeAttribute(AutomatedPolicyEvaluationMode::CheckOnSchedule)]
[PhysicalFacetAttribute]
public ref class Default sealed : public DefaultRuleBase, 
    ISfcSupportsDesignMode

[<SealedAttribute>]
[<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)>]
[<PhysicalFacetAttribute>]
type Default =  
    class 
        inherit DefaultRuleBase 
        interface ISfcSupportsDesignMode 
    end

public final class Default extends DefaultRuleBase implements ISfcSupportsDesignMode

Nel tipo Default sono esposti i membri seguenti.

Costruttori

	Nome	Descrizione
	Default()	Initializes a new instance of the Default class.
	Default(Database, String)	Initializes a new instance of the Default class on the specified database and with the specified name.
	Default(Database, String, String)	Initializes a new instance of the Default class on the specified database and with the specified name and schema.

In alto

Proprietà

	Nome	Descrizione
	CreateDate	Gets the date and time when the default was created.
	ExtendedProperties	Represents a collection of ExtendedProperty objects. Each ExtendedProperty object represents an extended property on the Default object or the Rule object. Ereditato da DefaultRuleBase.
	ID	Gets the ID value that uniquely identifies the default.
	Name	Gets or sets the name of the schema. Ereditato da ScriptSchemaObjectBase.
	Parent	Gets or sets the Database object that is the parent of the Default object.
	Properties	Gets a collection of Property objects that represent the object properties. Ereditato da SqlSmoObject.
	Schema	Gets or sets the schema. Ereditato da ScriptSchemaObjectBase.
	State	Gets the state of the referenced object. Ereditato da SmoObjectBase.
	TextBody	Gets or sets the text that defines the default or rule. Ereditato da DefaultRuleBase.
	TextHeader	Gets or sets the header of the text body that defines the default or rule. Ereditato da DefaultRuleBase.
	TextMode	Gets or sets the Boolean property value that specifies whether the Default object or Rule object header is editable as text. Ereditato da DefaultRuleBase.
	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.

In alto

Metodi

	Nome	Descrizione
	Alter	Updates any Default object or Rule object property changes on instance of SQL Server. Ereditato da DefaultRuleBase.
	BindToColumn(String, String)	Binds the default or rule to the specified column in the specified table. Ereditato da DefaultRuleBase.
	BindToColumn(String, String, String)	Binds the default or rule to the specified column in the specified table with the specified schema. Ereditato da DefaultRuleBase.
	BindToDataType	Binds the default or rule to a data type. Ereditato da DefaultRuleBase.
	ChangeSchema	Changes the schema for the default.
	Create	Creates a default or rule on the instance of SQL Server as defined by the Default object or Rule object. Ereditato da DefaultRuleBase.
	Discover	Discovers a list of type Object. Ereditato da SqlSmoObject.
	Drop	Removes the rule or the default. Ereditato da DefaultRuleBase.
	EnumBoundColumns	Enumerates a list of columns to which the default or rule is bound. Ereditato da DefaultRuleBase.
	EnumBoundDataTypes	Enumerates a list of data types to which the default or rule is bound. Ereditato da DefaultRuleBase.
	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 SqlSmoObject.
	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 script name. Ereditato da ScriptNameObjectBase.
	Script()	Generates a Transact-SQL script that can be used to re-create the default or rule. Ereditato da DefaultRuleBase.
	Script(ScriptingOptions)	Generates a Transact-SQL script that can be used to re-create the default or rule as specified by the script options. Ereditato da DefaultRuleBase.
	ScriptHeader	Generates a Transact-SQL script that can be used to re-create the default or rule header as specified by the script options. Ereditato da DefaultRuleBase.
	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.
	UnbindFromColumn(String, String)	Unbinds the default or rule from the specified column. Ereditato da DefaultRuleBase.
	UnbindFromColumn(String, String, String)	Unbinds the default or rule from the specified column with the specified table schema. Ereditato da DefaultRuleBase.
	UnbindFromDataType	Unbinds the default or rule from the specified data type Ereditato da DefaultRuleBase.
	Validate	Validates the state of an object. Ereditato da SmoObjectBase.

In alto

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.

In alto

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.
	ISfcSupportsDesignMode.IsDesignMode	Gets a Boolean value that indicates whether the object supports design mode. Identificato solo a scopo informativo. Non supportato. Non è garantita la compatibilità con le versioni future.

In alto

Osservazioni

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

To set Default object properties, users must have CREATE DEFAULT permission on the database.

To create a default, users must have CREATE DEFAULT permission on the database.

To drop a default, users must have DROP DEFAULT permission on the database.

To bind a default to a column or unbind a default from a column, users must be a member of db_owner or db_ddladmin fixed database roles.

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

Creazione, modifica e rimozione di valori predefiniti

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

Altre risorse

Valori predefiniti

CREATE DEFAULT (Transact-SQL)