EnumQueueReaderAgentSessionDetails 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。

TheEnumQueueReaderAgentSessionDetails method returns a QueryResults object that enumerates detailed information about a Queue Reader Agent session related to the specified publication.

语法

object.EnumQueueReaderAgentSessionDetails(lPublicationID,SessionID,lEstimatedNumRecords )asQueryResults

Parts

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

• lPublicationID
  Long integer that identifies the publication by ID.

• SessionID
  String that identifies the agent session by ID.

• lEstimatedNumRecords
  Long integer that specifies the estimated number of QueryResults rows to return.

Prototype (C/C++)

HRESULT EnumQueueReaderAgentSessionDetails (
long lPublicationID, 
SQLDMO_LPCSTR SessionID,
long lEstimatedNumRecords,
LPSQLDMOQUERYRESULTS *ppResults);

Returns

A QueryResults object that contains one result set defined by these columns.

Column	Data type	Description
commands_processed	integer	Cumulative number of commands processed in the session.
comments	nvarchar(256)	Descriptive text.
error_id	integer	When nonzero, indicates Microsoft SQL Server error message number.
runstatus	integer	Executing state. Interpret using SQLDMO_TASKSTATUS_TYPE.
subscriber	sysname	Name of the Subscriber.
subscriberdb	sysname	Name of the subscription database.
time	nvarchar(24)	Date and time of message logging.
transaction_id	integer	Transaction identifier.
transaction_status	integer	Current status of the transaction.

注释

In the result set, date and time data returned in time is formatted as YYYYMMDD hh:mm:ss.fff.

Date part	Description
YYYY	Represents the year in four digits.
MM	Represents the month in two digits (zero padded).
DD	Represents the day of the month in two digits (zero padded).
hh	Represents the hour using two digits, a twenty-four hour clock (zero padded).
mm	Represents the minute in two digits (zero padded).
ss	Represents the second in two digits (zero padded).
fff	Represents the fractional part of the second in three digits.

For example, the value 20040512 18:12:00.000 is interpreted as 6:12 P.M., May 12, 2004.

The EnumQueueReaderAgentSessionDetails method includes the lEstimatedNumRecords parameter, which allows an application to pass an estimated number of QueryResults rows. This allows the application to avoid the performance overhead associated with repeatedly allocating and freeing memory.

To increase the accuracy of the estimated number of QueryResults rows, an application can pass the value of the action_count column returned by the EnumQueueReaderAgentSessions method to the lEstimatedNumRecords parameter.

注意
If an application calls EnumQueueReaderAgentSessionDetailson an instance of SQL Server version 7.0, the constant, SQLDMO_E_SQL80ONLY, and the message "This property or method requires Microsoft SQL Server 2000 or later" are returned.

Applies To:

DistributionDatabase2 Object