Classe Sequence

This class represents the SQL Server Sequence. A sequence is a user-defined schema bound object that generates a sequence of numeric values according to the specification with which the sequence was created. The sequence of numeric values is generated in an ascending or descending order at a defined interval and can be configured to restart (cycle) when exhausted. Sequences, unlike identity columns, are not associated with specific tables. Applications refer to a sequence object to retrieve its next value. The relationship between sequences and tables is controlled by the application. User applications can reference a sequence object and coordinate the values across multiple rows and tables.

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.Sequence

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

Sintassi

'Dichiarazione
<StateChangeEventAttribute("ALTER_AUTHORIZATION_DATABASE", "SEQUENCE")> _
<PhysicalFacetAttribute> _
<StateChangeEventAttribute("CREATE_SEQUENCE", "SEQUENCE")> _
<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.None Or AutomatedPolicyEvaluationMode.Enforce Or AutomatedPolicyEvaluationMode.CheckOnChanges Or AutomatedPolicyEvaluationMode.CheckOnSchedule)> _
<StateChangeEventAttribute("ALTER_SEQUENCE", "SEQUENCE")> _
<StateChangeEventAttribute("RENAME", "SEQUENCE")> _
<StateChangeEventAttribute("ALTER_SCHEMA", "SEQUENCE")> _
Public NotInheritable Class Sequence _
    Inherits ScriptSchemaObjectBase _
    Implements IObjectPermission, ICreatable, IDroppable, IRenamable,  _
    IExtendedProperties, IScriptable, IAlterable
'Utilizzo
Dim instance As Sequence

[StateChangeEventAttribute("ALTER_AUTHORIZATION_DATABASE", "SEQUENCE")]
[PhysicalFacetAttribute]
[StateChangeEventAttribute("CREATE_SEQUENCE", "SEQUENCE")]
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode.None|AutomatedPolicyEvaluationMode.Enforce|AutomatedPolicyEvaluationMode.CheckOnChanges|AutomatedPolicyEvaluationMode.CheckOnSchedule)]
[StateChangeEventAttribute("ALTER_SEQUENCE", "SEQUENCE")]
[StateChangeEventAttribute("RENAME", "SEQUENCE")]
[StateChangeEventAttribute("ALTER_SCHEMA", "SEQUENCE")]
public sealed class Sequence : ScriptSchemaObjectBase, 
    IObjectPermission, ICreatable, IDroppable, IRenamable, IExtendedProperties, 
    IScriptable, IAlterable

[StateChangeEventAttribute(L"ALTER_AUTHORIZATION_DATABASE", L"SEQUENCE")]
[PhysicalFacetAttribute]
[StateChangeEventAttribute(L"CREATE_SEQUENCE", L"SEQUENCE")]
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode::None|AutomatedPolicyEvaluationMode::Enforce|AutomatedPolicyEvaluationMode::CheckOnChanges|AutomatedPolicyEvaluationMode::CheckOnSchedule)]
[StateChangeEventAttribute(L"ALTER_SEQUENCE", L"SEQUENCE")]
[StateChangeEventAttribute(L"RENAME", L"SEQUENCE")]
[StateChangeEventAttribute(L"ALTER_SCHEMA", L"SEQUENCE")]
public ref class Sequence sealed : public ScriptSchemaObjectBase, 
    IObjectPermission, ICreatable, IDroppable, IRenamable, IExtendedProperties, 
    IScriptable, IAlterable

[<SealedAttribute>]
[<StateChangeEventAttribute("ALTER_AUTHORIZATION_DATABASE", "SEQUENCE")>]
[<PhysicalFacetAttribute>]
[<StateChangeEventAttribute("CREATE_SEQUENCE", "SEQUENCE")>]
[<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.None|AutomatedPolicyEvaluationMode.Enforce|AutomatedPolicyEvaluationMode.CheckOnChanges|AutomatedPolicyEvaluationMode.CheckOnSchedule)>]
[<StateChangeEventAttribute("ALTER_SEQUENCE", "SEQUENCE")>]
[<StateChangeEventAttribute("RENAME", "SEQUENCE")>]
[<StateChangeEventAttribute("ALTER_SCHEMA", "SEQUENCE")>]
type Sequence =  
    class 
        inherit ScriptSchemaObjectBase 
        interface IObjectPermission 
        interface ICreatable 
        interface IDroppable 
        interface IRenamable 
        interface IExtendedProperties 
        interface IScriptable 
        interface IAlterable 
    end

public final class Sequence extends ScriptSchemaObjectBase implements IObjectPermission, ICreatable, IDroppable, IRenamable, IExtendedProperties, IScriptable, IAlterable

Nel tipo Sequence sono esposti i membri seguenti.

Costruttori

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

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Proprietà

	Nome	Descrizione
	CacheSize	Gets or sets the number of sequence values to be cached.
	CreateDate	Gets a DateTime representing the date and time when the sequence was created.
	CurrentValue	Gets the Object which represents the current value of the Sequence
	DataType	Gets or sets the [Microsoft.SqlServer.Management.Smo.DataType] of this sequence.
	DateLastModified	Get the DateTime representing the date and time the sequence was last modified.
	Events	Gets the SequenceEvents object associated with this sequence.
	ExtendedProperties	Represents a collection of ExtendedProperty objects. Each ExtendedProperty object represents an extended property for the ExtendedPropertyCollection object.
	ID	Gets the ID value that uniquely identifies the sequence.
	IncrementValue	Gets or sets the object that represents the increment value for the sequence.
	IsCycleEnabled	Gets or sets a Boolean that specifies whether the sequence object should restart from the minimum value (or maximum for descending sequence objects) or throw an exception when its minimum or maximum value is exceeded.
	IsExhausted	Gets a Boolean which indicates whether the sequence is exhausted.
	IsSchemaOwned	Gets a Boolean value that indicates whether the Sequence object is owned by a schema.
	MaxValue	Gets or sets an Object that specifies the upper bound for the sequence object. The default maximum value for a new sequence object is the maximum value of the data type of the sequence object.
	MinValue	Gets or sets an Object that specifies the lower bound for the sequence object. The default minimum value for a new sequence object is the minimum value of the data type of the sequence object.
	Name	Gets or sets the name of the sequence. Esegue l'override di ScriptSchemaObjectBase.Name.
	Owner	Gets the name of the owner of the Sequence object.
	Parent	Gets the Database object that is the parent of the Sequence object.
	Properties	Gets a collection of Property objects that represent the object properties. Ereditato da SqlSmoObject.
	Schema	Gets or sets a String which contains the name of the schema which owns the Sequence. Esegue l'override di ScriptSchemaObjectBase.Schema.
	SequenceCacheType	Gets or sets a SequenceCacheType which indicates how the sequence is cached.
	StartValue	Gets or sets a Object which represents the starting value of the sequence.
	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 Sequence object property changes on the instance of Microsoft SQL Server.
	Create	Creates a sequence on the instance of SQL Server as defined by the Sequence object.
	Deny(ObjectPermissionSet, String)	Denies the specified set of permissions for the specified grantee on the sequence.
	Deny(ObjectPermissionSet, array<String[])	Denies the specified set of permissions for the specified grantees on the sequence.
	Deny(ObjectPermissionSet, String, Boolean)	Denies the specified set of permissions for the specified grantee and other users that the grantee granted the specified set of permissions on the sequence.
	Deny(ObjectPermissionSet, array<String[], Boolean)	Denies the specified set of permissions for the specified grantees and other users that the grantees granted the specified set of permissions on the sequence.
	Discover	Discovers a list of type Object. Ereditato da SqlSmoObject.
	Drop	Removes the sequence from the database.
	EnumObjectPermissions()	Enumerates a list of object permissions for the Sequence.
	EnumObjectPermissions(String)	Enumerates a list of object permissions for a specified grantee on the Sequence.
	EnumObjectPermissions(ObjectPermissionSet)	Enumerates a list of object permissions for a specified permission on the Sequence.
	EnumObjectPermissions(String, ObjectPermissionSet)	Enumerates a list of object permissions for a specified grantee and a specified permission on the Sequence.
	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.
	Grant(ObjectPermissionSet, String)	Grants the specified set of permissions to the specified grantee on the Sequence.
	Grant(ObjectPermissionSet, array<String[])	Grants the specified set of permissions to the specified grantees on the Sequence.
	Grant(ObjectPermissionSet, String, Boolean)	Grants access to the specified permission and the ability to grant access to other uses for the specified grantee on the Sequence.
	Grant(ObjectPermissionSet, array<String[], Boolean)	Grants access to the specified permission to the grantees and the ability to grant access to other users on the sequence
	Grant(ObjectPermissionSet, String, Boolean, String)	Grants the specified set of permissions to the grantee and the ability to grant the set of permissions to other users on the sequence under an assumed role.
	Grant(ObjectPermissionSet, array<String[], Boolean, String)	Grants the specified set of permissions to the grantees and the ability to grant the set of permissions to other users on the sequence under an assumed role.
	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 objects and properties on the Sequence object. Esegue l'override di ScriptNameObjectBase.Refresh().
	Rename	Renames the sequence.
	Revoke(ObjectPermissionSet, String)	Revokes a previously granted set of permissions from a grantee on the sequence.
	Revoke(ObjectPermissionSet, array<String[])	Revokes a previously granted set of permissions from a set of grantees on the sequence.
	Revoke(ObjectPermissionSet, String, Boolean, Boolean)	Revokes a previously granted set of permissions from a grantee from the sequence and any other users to whom the grantee has granted the specified set of permissions. The grantee is also given the ability to revoke the specified set of permissions from other users.
	Revoke(ObjectPermissionSet, array<String[], Boolean, Boolean)	Revokes a previously granted set of permissions from a set of grantees from the sequence and any other users to whom the grantees have granted the specified set of permissions. The grantees are also given the ability to revoke the specified set of permissions from other users
	Revoke(ObjectPermissionSet, String, Boolean, Boolean, String)	Revokes a previously granted set of permissions from a grantee from the sequence and any other users to whom the grantee has granted the specified set of permissions. The grantee is also given the ability to revoke the specified set of permissions from other users under an assumed role.
	Revoke(ObjectPermissionSet, array<String[], Boolean, Boolean, String)	Revokes a previously granted set of permissions from a set of grantees from the sequence and any other users to whom the grantees have granted the specified set of permissions. The grantees are also given the ability to revoke the specified set of permissions from other users within an assumed role.
	Script()	Generates a Transact-SQL script that can be used to re-create the sequence.
	Script(ScriptingOptions)	Generates a Transact-SQL script that can be used to re-create the sequence.
	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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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