EnumMergeAgentSessions2 Method
В будущей версии Microsoft SQL Server эта возможность будет удалена. Избегайте использования этой возможности в новых разработках и запланируйте изменение существующих приложений, в которых она применяется.
The EnumMergeAgentSessions2method returns a QueryResults object that enumerates execution status data for the merge replication agent specified.
Синтаксис
object.EnumMergeAgentSessions2(AgentName,SessionType, SessionDuration,lEstimatedNumRecords)as QueryResults
Parts
object
Expression that evaluates to an object in the Applies To list.AgentName
String that identifies a merge replication agent by name.SessionType
Long integer that indicates session type as described in Settings.SessionDuration
Long integer that specifies a number of hours. Restricts result set membership to those sessions launched within the number of hours specified. Use 0 to specify no restriction on agent session start time.lEstimatedNumRecords
Long integer that specifies the estimated number of QueryResults rows to return.
Prototype (C/C++)
HRESULT EnumMergeAgentSessions2(
SQLDMO_LPCSTR AgentName,
SQLDMO_SESSION_TYPE SessionType,
long SessionDuration,
long lEstimatedNumRecords,
LPSQLDMOQUERYRESULTS* ppResults);
Settings
Set SessionType using these values.
Constant |
Value |
Description |
|---|---|---|
SQLDMOSession_All |
1 |
Output contains log information for all sessions for agent. |
SQLDMOSession_Errors |
2 |
Output contains log information only for those execution attempts ending in error. |
Returns
A QueryResults object that contains one result set defined by these columns.
Column |
Data type |
Description |
|---|---|---|
average_rows |
integer |
Average number of rows per second. |
action_count |
integer |
Number of session history records. |
comments |
nvarchar(256) |
Descriptive text. |
duration |
integer |
Elapsed time of the session. |
error_id |
integer |
When nonzero, Microsoft SQL Server error message number. |
publisher_conflicts |
integer |
Number of conflicts at the Publisher. |
publisher_deletecount |
integer |
Number of deletes at the Publisher. |
publisher_insertcount |
integer |
Number of inserts at the Publisher. |
publisher_updatecount |
integer |
Number of updates at the Publisher. |
runstatus |
integer |
Executing state. Interpret using SQLDMO_TASKSTATUS_TYPE. |
start_time |
nvarchar(26) |
Date and time of last scheduled execution. |
subscriber_conflicts |
integer |
Number of conflicts at the Subscriber. |
subscriber_/deletecount |
integer |
Number of deletes at the Subscriber. |
subscriber_/insertcount |
integer |
Number of inserts at the Subscriber. |
subscriber_/updatecount |
integer |
Number of updates at the Subscriber. |
time |
nvarchar(26) |
Date and time of message logging. |
Замечания
In the result set, date, and time data returned in start_time and 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 EnumMergeAgentSessions2 method differs from the EnumMergeAgentSessions 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.