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UserDefinedAggregate 類別

The UserDefinedAggregate object represents a SQL Server user-defined aggregate.

命名空間：  Microsoft.SqlServer.Management.Smo
組件：  Microsoft.SqlServer.Smo (在 Microsoft.SqlServer.Smo.dll 中)

語法

'宣告
<PhysicalFacetAttribute> _
<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)> _
Public NotInheritable Class UserDefinedAggregate _
    Inherits ScriptSchemaObjectBase _
    Implements IObjectPermission, ICreatable, IDroppable, IExtendedProperties,  _
    IScriptable
'用途
Dim instance As UserDefinedAggregate

[PhysicalFacetAttribute]
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)]
public sealed class UserDefinedAggregate : ScriptSchemaObjectBase, 
    IObjectPermission, ICreatable, IDroppable, IExtendedProperties, IScriptable

[PhysicalFacetAttribute]
[EvaluationModeAttribute(AutomatedPolicyEvaluationMode::CheckOnSchedule)]
public ref class UserDefinedAggregate sealed : public ScriptSchemaObjectBase, 
    IObjectPermission, ICreatable, IDroppable, IExtendedProperties, IScriptable

[<SealedAttribute>]
[<PhysicalFacetAttribute>]
[<EvaluationModeAttribute(AutomatedPolicyEvaluationMode.CheckOnSchedule)>]
type UserDefinedAggregate =  
    class
        inherit ScriptSchemaObjectBase
        interface IObjectPermission
        interface ICreatable
        interface IDroppable
        interface IExtendedProperties
        interface IScriptable
    end

public final class UserDefinedAggregate extends ScriptSchemaObjectBase implements IObjectPermission, ICreatable, IDroppable, IExtendedProperties, IScriptable

備註

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

To set UserDefinedAggregate object properties, users must have CREATE AGGREGATE permission on the database and also REFERENCES permission on the specified assembly.

To create a user-defined aggregate, users must have DROP AGGREGATE permission on the database or ALTER permission on the user-defined aggregate.

To grant, deny, or revoke permission on the user-defined aggregate to other users, users must have CONTROL permission on the user-defined aggregate.

執行緒安全性

這個類型的任何公用static (在 Visual Basic 中為 Shared) 成員都是安全執行緒。不保證任何執行個體成員都可以是安全執行緒。