EventChronicle Class

Represents a Notification Services application event chronicle, which is supplemental storage for event data.

命名空间: Microsoft.SqlServer.Management.Nmo
程序集: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

语法

声明
Public NotInheritable Class EventChronicle
    Inherits NamedSmoObject

public sealed class EventChronicle : NamedSmoObject

public ref class EventChronicle sealed : public NamedSmoObject

public final class EventChronicle extends NamedSmoObject

public final class EventChronicle extends NamedSmoObject

备注

Event chronicles are optional; use them only if you need to maintain event information outside of the event tables used by an event class. A common reason to use an event chronicle is to store and maintain event data for scheduled subscriptions.

Each EventChronicle must have one or more Transact-SQL statements specified using the SqlStatements property.

Inheritance Hierarchy

System.Object
   Microsoft.SqlServer.Management.Smo.SmoObjectBase
     Microsoft.SqlServer.Management.Smo.SqlSmoObject
       Microsoft.SqlServer.Management.Smo.NamedSmoObject
        Microsoft.SqlServer.Management.Nmo.EventChronicle

示例

The following examples show how to define an event chronicle and add it to the collection of chronicles for an event class:

// Define a chronicle for the class
EventChronicle ec1 = 
    new EventChronicle(flightEvents, "FlightEventChonicle");
ec1.SqlStatements.Add(
    "CREATE TABLE MyAppSchema.FlightEventChronicle " + 
    " (LeavingFrom nvarchar(6), GoingTo nvarchar(6), " +  
    " Price float);");
ec1.SqlStatements.Add(
    "CREATE INDEX FlightEventChronicleIndex  " + 
    "ON MyAppSchema.FlightEventChronicle " + 
    "( LeavingFrom, GoingTo );");
flightEvents.EventChronicles.Add(ec1);

' Define a chronicle for the class.
Dim ec1 As EventChronicle = _
    New EventChronicle(flightEvents, "FlightEventChonicle")
ec1.SqlStatements.Add( _
    "CREATE TABLE MyAppSchema.FlightEventChronicle " + _
    " (LeavingFrom nvarchar(6), GoingTo nvarchar(6), " + _
    " Price float);")
ec1.SqlStatements.Add( _
    "CREATE INDEX FlightEventChronicleIndex " + _
    "ON MyAppSchema.FlightEventChronicle " + _
    "( LeavingFrom, GoingTo );")
flightEvents.EventChronicles.Add(ec1)

线程安全

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

平台

开发平台

有关支持的平台列表，请参阅安装 SQL Server 2005 的硬件和软件要求。

目标平台

有关支持的平台列表，请参阅安装 SQL Server 2005 的硬件和软件要求。

请参阅

参考

EventChronicle Members
Microsoft.SqlServer.Management.Nmo Namespace

其他资源

为事件类定义历史记录
Chronicle Element for EventClass/Chronicles (ADF)