Sequence 类
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.
继承层次结构
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
命名空间： Microsoft.SqlServer.Management.Smo
程序集： Microsoft.SqlServer.Smo（在 Microsoft.SqlServer.Smo.dll 中）
语法
声明
<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
用法
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
Sequence 类型公开以下成员。
构造函数
| 名称 | 说明 | |
|---|---|---|
.gif "公共方法") |
Sequence() | Initializes a new instance of the Sequence class. |
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Sequence(Database, String) | Initializes a new instance of the Sequence class with specified parent database and name. |
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Sequence(Database, String, String) | Initializes a new instance of the Sequence class with specified parent database, name and schema. |
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属性
| 名称 | 说明 | |
|---|---|---|
.gif "公共属性") |
CacheSize | Gets or sets the number of sequence values to be cached. |
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CreateDate | Gets a DateTime representing the date and time when the sequence was created. |
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CurrentValue | Gets the Object which represents the current value of the Sequence |
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DataType | Gets or sets the [Microsoft.SqlServer.Management.Smo.DataType] of this sequence. |
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DateLastModified | Get the DateTime representing the date and time the sequence was last modified. |
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Events | Gets the SequenceEvents object associated with this sequence. |
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ExtendedProperties | Represents a collection of ExtendedProperty objects. Each ExtendedProperty object represents an extended property for the ExtendedPropertyCollection object. |
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ID | Gets the ID value that uniquely identifies the sequence. |
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IncrementValue | Gets or sets the object that represents the increment value for the sequence. |
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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. |
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IsExhausted | Gets a Boolean which indicates whether the sequence is exhausted. |
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IsSchemaOwned | Gets a Boolean value that indicates whether the Sequence object is owned by a schema. |
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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. |
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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. |
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Name | Gets or sets the name of the sequence. （覆盖 ScriptSchemaObjectBase.Name。） |
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Owner | Gets the name of the owner of the Sequence object. |
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Parent | Gets the Database object that is the parent of the Sequence object. |
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Properties | Gets a collection of Property objects that represent the object properties. （从 SqlSmoObject 继承。） |
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Schema | Gets or sets a String which contains the name of the schema which owns the Sequence. （覆盖 ScriptSchemaObjectBase.Schema。） |
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SequenceCacheType | Gets or sets a SequenceCacheType which indicates how the sequence is cached. |
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StartValue | Gets or sets a Object which represents the starting value of the sequence. |
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State | Gets the state of the referenced object. （从 SmoObjectBase 继承。） |
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Urn | Gets the Uniform Resource Name (URN) address value that uniquely identifies the object. （从 SqlSmoObject 继承。） |
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UserData | Gets or sets user-defined data associated with the referenced object. （从 SmoObjectBase 继承。） |
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方法
| 名称 | 说明 | |
|---|---|---|
|
Alter | Updates any Sequence object property changes on the instance of Microsoft SQL Server. |
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Create | Creates a sequence on the instance of SQL Server as defined by the Sequence object. |
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Deny(ObjectPermissionSet, String) | Denies the specified set of permissions for the specified grantee on the sequence. |
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Deny(ObjectPermissionSet, array<String[]) | Denies the specified set of permissions for the specified grantees on the sequence. |
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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. |
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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. |
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Discover | Discovers a list of type Object. （从 SqlSmoObject 继承。） |
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Drop | Removes the sequence from the database. |
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EnumObjectPermissions() | Enumerates a list of object permissions for the Sequence. |
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EnumObjectPermissions(String) | Enumerates a list of object permissions for a specified grantee on the Sequence. |
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EnumObjectPermissions(ObjectPermissionSet) | Enumerates a list of object permissions for a specified permission on the Sequence. |
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EnumObjectPermissions(String, ObjectPermissionSet) | Enumerates a list of object permissions for a specified grantee and a specified permission on the Sequence. |
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Equals | （从 Object 继承。） |
.gif "受保护方法") |
FormatSqlVariant | Formats an object as SqlVariant type. （从 SqlSmoObject 继承。） |
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GetContextDB | Gets the context database that is associated with this object. （从 SqlSmoObject 继承。） |
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GetDBName | Gets the database name that is associated with the object. （从 SqlSmoObject 继承。） |
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GetHashCode | （从 Object 继承。） |
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GetPropValue | Gets a property value of the SqlSmoObject object. （从 SqlSmoObject 继承。） |
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GetPropValueOptional | Gets a property value of the SqlSmoObject object. （从 SqlSmoObject 继承。） |
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GetPropValueOptionalAllowNull | Gets a property value of the SqlSmoObject object. （从 SqlSmoObject 继承。） |
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GetServerObject | Gets the server of the SqlSmoObject object. （从 SqlSmoObject 继承。） |
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GetType | （从 Object 继承。） |
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Grant(ObjectPermissionSet, String) | Grants the specified set of permissions to the specified grantee on the Sequence. |
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Grant(ObjectPermissionSet, array<String[]) | Grants the specified set of permissions to the specified grantees on the Sequence. |
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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. |
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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 |
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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. |
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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. |
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Initialize() | Initializes the object and forces the properties be loaded. （从 SqlSmoObject 继承。） |
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Initialize(Boolean) | Initializes the object and forces the properties be loaded. （从 SqlSmoObject 继承。） |
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IsObjectInitialized | Verifies whether the object has been initialized. （从 SqlSmoObject 继承。） |
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IsObjectInSpace | Verifies whether the object is isolated or connected to the instance of SQL Server. （从 SqlSmoObject 继承。） |
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Refresh | Refreshes the objects and properties on the Sequence object. （覆盖 ScriptNameObjectBase.Refresh()。） |
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Rename | Renames the sequence. |
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Revoke(ObjectPermissionSet, String) | Revokes a previously granted set of permissions from a grantee on the sequence. |
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Revoke(ObjectPermissionSet, array<String[]) | Revokes a previously granted set of permissions from a set of grantees on the sequence. |
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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. |
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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 |
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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. |
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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. |
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Script() | Generates a Transact-SQL script that can be used to re-create the sequence. |
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Script(ScriptingOptions) | Generates a Transact-SQL script that can be used to re-create the sequence. |
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SetParentImpl | Sets the parent of the SqlSmoObject to the newParent parameter. （从 SqlSmoObject 继承。） |
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ToString | Returns a String that represents the referenced object. （从 SqlSmoObject 继承。） |
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Validate | Validates the state of an object. （从 SmoObjectBase 继承。） |
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事件
| 名称 | 说明 | |
|---|---|---|
.gif "公共事件") |
PropertyChanged | Represents the event that occurs when a property is changed. （从 SqlSmoObject 继承。） |
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PropertyMetadataChanged | Represents the event that occurs when property metadata changes. （从 SqlSmoObject 继承。） |
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显式接口实现
| 名称 | 说明 | |
|---|---|---|
.gif "显式接口实现") .gif "私有方法") |
IAlienObject.Discover | Discovers any dependencies. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 （从 SqlSmoObject 继承。） |
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IAlienObject.GetDomainRoot | Returns the root of the domain. （从 SqlSmoObject 继承。） |
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IAlienObject.GetParent | Gets the parent of this object. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 （从 SqlSmoObject 继承。） |
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IAlienObject.GetPropertyType | Gets the type of the specified property. （从 SqlSmoObject 继承。） |
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IAlienObject.GetPropertyValue | Gets the value of the specified property. （从 SqlSmoObject 继承。） |
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IAlienObject.GetUrn | Gets the Unified Resource Name (URN) of the object. 不要在您的代码中直接引用此成员。它支持 SQL Server 基础结构。 （从 SqlSmoObject 继承。） |
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IAlienObject.Resolve | Gets the instance that contains the information about the object from the Unified Resource Name (URN) of the object. （从 SqlSmoObject 继承。） |
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IAlienObject.SetObjectState | Sets the object state to the specified SfcObjectState value. （从 SqlSmoObject 继承。） |
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IAlienObject.SetPropertyValue | Sets the property value. （从 SqlSmoObject 继承。） |
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ISfcPropertyProvider.GetPropertySet | Gets the interface reference to the set of properties of this object. （从 SqlSmoObject 继承。） |
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线程安全
此类型的任何公共 static（在 Visual Basic 中为 Shared） 成员都是线程安全的。不保证所有实例成员都是线程安全的。