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Classe Sequence

  • Artigo

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.

Hierarquia de herança

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

Namespace:  Microsoft.SqlServer.Management.Smo
Assembly:  Microsoft.SqlServer.Smo (em Microsoft.SqlServer.Smo.dll)

Sintaxe

'Declaração
<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
'Uso
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

O tipo Sequence expõe os membros a seguir.

Construtores

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

Início

Propriedades

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

Início

Métodos

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

Início

Eventos

  Nome Descrição
Evento público PropertyChanged Represents the event that occurs when a property is changed. (Herdado de SqlSmoObject.)
Evento público PropertyMetadataChanged Represents the event that occurs when property metadata changes. (Herdado de SqlSmoObject.)

Início

Implementações de interfaces explícitas

  Nome Descrição
Implementações de interfaces explícitasMétodo privado IAlienObject.Discover Discovers any dependencies. Não referencie esse membro diretamente no código. Ele dá suporte à infraestrutura do SQL Server. (Herdado de SqlSmoObject.)
Implementações de interfaces explícitasMétodo privado IAlienObject.GetDomainRoot Returns the root of the domain. (Herdado de SqlSmoObject.)
Implementações de interfaces explícitasMétodo privado IAlienObject.GetParent Gets the parent of this object. Não referencie esse membro diretamente no código. Ele dá suporte à infraestrutura do SQL Server. (Herdado de SqlSmoObject.)
Implementações de interfaces explícitasMétodo privado IAlienObject.GetPropertyType Gets the type of the specified property. (Herdado de SqlSmoObject.)
Implementações de interfaces explícitasMétodo privado IAlienObject.GetPropertyValue Gets the value of the specified property. (Herdado de SqlSmoObject.)
Implementações de interfaces explícitasMétodo privado IAlienObject.GetUrn Gets the Unified Resource Name (URN) of the object. Não referencie esse membro diretamente no código. Ele dá suporte à infraestrutura do SQL Server. (Herdado de SqlSmoObject.)
Implementações de interfaces explícitasMétodo privado IAlienObject.Resolve Gets the instance that contains the information about the object from the Unified Resource Name (URN) of the object. (Herdado de SqlSmoObject.)
Implementações de interfaces explícitasMétodo privado IAlienObject.SetObjectState Sets the object state to the specified SfcObjectState value. (Herdado de SqlSmoObject.)
Implementações de interfaces explícitasMétodo privado IAlienObject.SetPropertyValue Sets the property value. (Herdado de SqlSmoObject.)
Implementações de interfaces explícitasMétodo privado ISfcPropertyProvider.GetPropertySet Gets the interface reference to the set of properties of this object. (Herdado de SqlSmoObject.)

Início

Segurança de thread

Qualquer membro público static (Shared no Visual Basic) desse tipo é seguro para threads. Não há garantia de que qualquer membro de instância seja seguro para threads.

Consulte também

Referência

Namespace Microsoft.SqlServer.Management.Smo