EnumLocks 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 EnumLocks method returns a QueryResults object that enumerates the resource locks held by an instance of Microsoft SQL Server.
Синтаксис
object
.EnumLocks( [ Who ] )as QueryResults
Parts
object
Expression that evaluates to an object in the Applies To list.Who
Optionally restricts output by process identifier.
Prototype (C/C++)
HRESULT EnumLocks(
LPSQLDMOQUERYRESULTS* ppResults,
long Who = -1);
Returns
A QueryResults object that contains one result set defined by these columns.
Column |
Data type |
Description |
|---|---|---|
dbname |
nvarchar(129) |
Name of the database in which the locked resource is defined. |
indexname |
nvarchar(129) |
If applicable, the name of the index against which the lock is applied. |
locktype |
nvarchar(36) |
A text description of a locking mode. For more information about interpreting values, see the description of the system table syslockinfo column req_mode. |
req_spid |
integer |
Process ID of the process requesting the lock. |
status |
tinyint |
An integer indicating lock application status. For more information about interpreting values, see the description of the system table syslockinfo column req_status. |
tablename |
nvarchar(129) |
If applicable, the name of the table against which the lock is applied. |
Замечания
When restricting the QueryResults object content using the Who argument, use the process ID that identifies the login or other process targeted. The EnumProcesses method can help identify a target process.