EnumSnapshotAgentSessions2 Method
Dieses Feature wird in einer zukünftigen Version von Microsoft SQL Server entfernt. Verwenden Sie dieses Feature beim Entwickeln neuer Anwendungen nicht, und planen Sie das Ändern von Anwendungen, in denen es zurzeit verwendet wird.
The EnumSnapshotAgentSessions2 method returns a QueryResults object that enumerates session information for Snapshot Agents used by a Distributor.
Syntax
object
.EnumSnapshotAgentSessions2(
AgentName
,
SessionType
,
SessionDuration
,
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.
- SessionType
Long integer that indicates session type using SQLDMO_ SESSION_TYPE.
- 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 EnumSnapshotAgentSessions2(
SQLDMO_LPCSTR AgentName,
SQLDMO_SESSION_TYPE SessionType,
long SessionDuration,
long lEstimatedNumRecords,
LPSQLDMOQUERYRESULTS* ppResults);
Returns
A QueryResults object that contains one result set defined by these columns.
| Column | Data type | Description |
|---|---|---|
action_count |
integer |
Number of session history records. |
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. |
runstatus |
integer |
Executing state. Interpret using SQLDMO_TASKSTATUS_TYPE. |
start_time |
nvarchar(26) |
Date and time of last scheduled execution. |
time |
nvarchar(26) |
Date and time of message logging. |
Hinweise
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 EnumSnapshotAgentSessions2 method differs from the EnumSnapshotAgentSessions 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.