Refresh Method

后续版本的 Microsoft SQL Server 将删除该功能。请避免在新的开发工作中使用该功能，并着手修改当前还在使用该功能的应用程序。

The Refresh method updates a SQL Distributed Management Objects (SQL-DMO) object or collection with current values from the referenced instance of Microsoft SQL Server.

语法

object
.Refresh( [ Release ] )

Parts

• object
  Expression that evaluates to an object in the Applies To list.

• Release
  TRUE or FALSE as described in Settings.

Prototype (C/C++)

HRESULT Refresh(BOOL bReleaseMemberObjects = FALSE);

Settings

When Release is TRUE, all references maintained on a collection member, and any collections or objects within the member's tree, are released by force by SQL-DMO. SQL-DMO objects used by the application are invalid. SQL-DMO retrieves member object property values and refreshes the member object collection on the next application access to the object.

When Release is FALSE (default), application-maintained references are released only when the reference is on an object exposing a deleted or removed SQL Server component. Accessing a member object does not refresh member property values or contained collections.

备注

Use caution when using the Refresh method. In general, it is best to override the default value for the Release argument, as forcing reference release ensures that all objects within a hierarchy represent the current state of an instance of SQL Server.

Limit the scope of the Refresh method to optimize its execution. For example, use the Refresh method of a Table object to update the application image of properties of a specific SQL Server table when applicable, rather than using the Refresh method of Tables collection indiscriminately.

Applies To:

Alert Object	Logins Collection
AlertCategories Collection	MergeSubsetFilters Collection
Alerts Collection	MergeArticles Collection
AlertSystem Object	MergeDynamicSnapshotJobs Collection
BackupDevices Collection	MergePublications Collection
Category Object	MergePullSubscriptions Collection
Checks Collection	MergeSubscriptions Collection
Columns Collection	NameList Object
ConfigValues Collection	Names Collection
DatabaseRoles Collection	Operator Object
Databases Collection	Operators Collection
DBFiles Collection	OperatorCategories Collection
DBOption Object	QueryResults Object
Defaults Collection	RegisteredSubscribers Collection
DistributionArticles Collection	RegisteredServers Collection
DistributionDatabase Object	RegisteredSubscriber Object
DistributionDatabases Collection	RemoteServers Collection
DistributionPublications Collection	RemoteLogins Collection
DistributionPublisher Object	ReplicationDatabases Collection
DistributionPublishers Collection	ReplicationStoredProcedures Collection
DistributionSubscriptions Collection	ReplicationTables Collection
Distributor Object	Rules Collection
FileGroups Collection	Schedule Object
FullTextCatalogs Collection	ServerGroups Collection
Indexes Collection	ServerRoles Collection
IntegratedSecurity Object	SQLObjectList Object
Job Object	StoredProcedures Collection
JobCategories Collection	Table Object
Jobs Collection	Tables Collection
JobSchedule Object	TargetServer Object
JobSchedules Collection	TargetServerGroup Object
JobServer Object	TargetServerGroups Collection
JobStep Object	TargetServers Collection
JobSteps Collection	TransArticles Collection
Keys Collection	TransPublications Collection
Languages Collection	TransPullSubscriptions Collection
LinkedServer2 Object	TransSubscriptions Collection
LinkedServerLogins Collection	Triggers Collection
LinkedServers Collection	UserDefinedDatatypes Collection
LogFiles Collection	Users Collection
	Views Collection