EnumSnapshotAgentSessionDetails2 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 EnumSnapshotAgentSessionDetails2 method returns a QueryResults object that enumerates detail information for a specified Snapshot Agent session.

语法

object.EnumSnapshotAgentSessionDetails2(AgentName ,SessionID,lEstimatedNumRecords)as QueryResults

Parts

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

• AgentName
  String that identifies a Snapshot Agent by name.

• SessionID
  String that identifies a session. The SessionID value is specified using the first 21 characters of the time column value in the QueryResults result set returned by the EnumSnapshotAgentSessions method.

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

Prototype (C/C++)

HRESULT EnumSnapshotAgentSessionDetails2(
SQLDMO_LPCSTR AgentName,
SQLDMO_LPCSTR SessionID,
long lEstimatedNumRecords,
LPSQLDMOQUERYRESULTS* ppResults);

Returns

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

Column	Data type	Description
comments	nvarchar(256)	Descriptive text.
delivered_commands	integer	Cumulative number of commands delivered in the session.
delivery_rate	float	Average number of commands delivered per second.
duration	integer	Elapsed time of the session in seconds.
error_id	integer	When nonzero, Microsoft SQL Server error message number.
name	nvarchar(101)	Agent session name.
runstatus	integer	Executing state. Interpret using SQLDMO_TASKSTATUS_TYPE.
time	nvarchar(26)	Date and time of message logging.

注释

In the result set, date and time data returned in timeis 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 EnumSnapshotAgentSessionDetails2 method differs from the EnumSnapshotAgentSessionDetails method by including 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 EnumSnapshotAgentSessions or EnumSnapshotAgentSessions2 method to the lEstimatedNumRecords parameter.

Applies To:

DistributionPublisher2 Object