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Classe Sequence

  • Articolo

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
Metodo pubblico Sequence() Initializes a new instance of the Sequence class.
Metodo pubblico Sequence(Database, String) Initializes a new instance of the Sequence class with specified parent database and name.
Metodo pubblico 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
Proprietà pubblica CacheSize Gets or sets the number of sequence values to be cached.
Proprietà pubblica CreateDate Gets a DateTime representing the date and time when the sequence was created.
Proprietà pubblica CurrentValue Gets the Object which represents the current value of the Sequence
Proprietà pubblica DataType Gets or sets the [Microsoft.SqlServer.Management.Smo.DataType] of this sequence.
Proprietà pubblica DateLastModified Get the DateTime representing the date and time the sequence was last modified.
Proprietà pubblica Events Gets the SequenceEvents object associated with this sequence.
Proprietà pubblica ExtendedProperties Represents a collection of ExtendedProperty objects. Each ExtendedProperty object represents an extended property for the ExtendedPropertyCollection object.
Proprietà pubblica ID Gets the ID value that uniquely identifies the sequence.
Proprietà pubblica IncrementValue Gets or sets the object that represents the increment value for the sequence.
Proprietà pubblica 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.
Proprietà pubblica IsExhausted Gets a Boolean which indicates whether the sequence is exhausted.
Proprietà pubblica IsSchemaOwned Gets a Boolean value that indicates whether the Sequence object is owned by a schema.
Proprietà pubblica 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.
Proprietà pubblica 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.
Proprietà pubblica Name Gets or sets the name of the sequence. Esegue l'override di ScriptSchemaObjectBase.Name.
Proprietà pubblica Owner Gets the name of the owner of the Sequence object.
Proprietà pubblica Parent Gets the Database object that is the parent of the Sequence object.
Proprietà pubblica Properties Gets a collection of Property objects that represent the object properties. Ereditato da SqlSmoObject.
Proprietà pubblica Schema Gets or sets a String which contains the name of the schema which owns the Sequence. Esegue l'override di ScriptSchemaObjectBase.Schema.
Proprietà pubblica SequenceCacheType Gets or sets a SequenceCacheType which indicates how the sequence is cached.
Proprietà pubblica StartValue Gets or sets a Object which represents the starting value of the sequence.
Proprietà pubblica State Gets the state of the referenced object. Ereditato da SmoObjectBase.
Proprietà pubblica Urn Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. Ereditato da SqlSmoObject.
Proprietà pubblica UserData Gets or sets user-defined data associated with the referenced object. Ereditato da SmoObjectBase.

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Metodi

  Nome Descrizione
Metodo pubblico Alter Updates any Sequence object property changes on the instance of Microsoft SQL Server. 
Metodo pubblico Create Creates a sequence on the instance of SQL Server as defined by the Sequence object.
Metodo pubblico Deny(ObjectPermissionSet, String) Denies the specified set of permissions for the specified grantee on the sequence.
Metodo pubblico Deny(ObjectPermissionSet, array<String[]) Denies the specified set of permissions for the specified grantees on the sequence.
Metodo pubblico 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.
Metodo pubblico 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.
Metodo pubblico Discover Discovers a list of type Object. Ereditato da SqlSmoObject.
Metodo pubblico Drop Removes the sequence from the database.
Metodo pubblico EnumObjectPermissions() Enumerates a list of object permissions for the Sequence.
Metodo pubblico EnumObjectPermissions(String) Enumerates a list of object permissions for a specified grantee on the Sequence.
Metodo pubblico EnumObjectPermissions(ObjectPermissionSet) Enumerates a list of object permissions for a specified permission on the Sequence.
Metodo pubblico EnumObjectPermissions(String, ObjectPermissionSet) Enumerates a list of object permissions for a specified grantee and a specified permission on the Sequence.
Metodo pubblico Equals Ereditato da Object.
Metodo protetto FormatSqlVariant Formats an object as SqlVariant type. Ereditato da SqlSmoObject.
Metodo protetto GetContextDB Gets the context database that is associated with this object. Ereditato da SqlSmoObject.
Metodo protetto GetDBName Gets the database name that is associated with the object. Ereditato da SqlSmoObject.
Metodo pubblico GetHashCode Ereditato da Object.
Metodo protetto GetPropValue Gets a property value of the SqlSmoObject object. Ereditato da SqlSmoObject.
Metodo protetto GetPropValueOptional Gets a property value of the SqlSmoObject object. Ereditato da SqlSmoObject.
Metodo protetto GetPropValueOptionalAllowNull Gets a property value of the SqlSmoObject object. Ereditato da SqlSmoObject.
Metodo protetto GetServerObject Gets the server of the SqlSmoObject object. Ereditato da SqlSmoObject.
Metodo pubblico GetType Ereditato da Object.
Metodo pubblico Grant(ObjectPermissionSet, String) Grants the specified set of permissions to the specified grantee on the Sequence.
Metodo pubblico Grant(ObjectPermissionSet, array<String[]) Grants the specified set of permissions to the specified grantees on the Sequence.
Metodo pubblico 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.
Metodo pubblico 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
Metodo pubblico 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.
Metodo pubblico 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.
Metodo pubblico Initialize() Initializes the object and forces the properties be loaded. Ereditato da SqlSmoObject.
Metodo pubblico Initialize(Boolean) Initializes the object and forces the properties be loaded. Ereditato da SqlSmoObject.
Metodo protetto IsObjectInitialized Verifies whether the object has been initialized. Ereditato da SqlSmoObject.
Metodo protetto IsObjectInSpace Verifies whether the object is isolated or connected to the instance of SQL Server. Ereditato da SqlSmoObject.
Metodo pubblico Refresh Refreshes the objects and properties on the Sequence object. Esegue l'override di ScriptNameObjectBase.Refresh().
Metodo pubblico Rename Renames the sequence.
Metodo pubblico Revoke(ObjectPermissionSet, String) Revokes a previously granted set of permissions from a grantee on the sequence.
Metodo pubblico Revoke(ObjectPermissionSet, array<String[]) Revokes a previously granted set of permissions from a set of grantees on the sequence.
Metodo pubblico 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.
Metodo pubblico 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
Metodo pubblico 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.
Metodo pubblico 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.
Metodo pubblico Script() Generates a Transact-SQL script that can be used to re-create the sequence.
Metodo pubblico Script(ScriptingOptions) Generates a Transact-SQL script that can be used to re-create the sequence.
Metodo protetto SetParentImpl Sets the parent of the SqlSmoObject to the newParent parameter. Ereditato da SqlSmoObject.
Metodo pubblico ToString Returns a String that represents the referenced object. Ereditato da SqlSmoObject.
Metodo pubblico Validate Validates the state of an object. Ereditato da SmoObjectBase.

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Eventi

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

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Implementazioni esplicite dell'interfaccia

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