Database.EnumLocks Method ()

Article
12/15/2008

Enumerates a list of all current locks held on the database.

Espace de noms: Microsoft.SqlServer.Management.Smo
Assembly: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

Syntaxe

'Déclaration
Public Function EnumLocks As DataTable

public DataTable EnumLocks ()

public:
DataTable^ EnumLocks ()

public DataTable EnumLocks ()

public function EnumLocks () : DataTable

Valeur de retour

A DataTable object value that contains a list of locks held on the database and information about the type and location of the locks. The table describes the different columns of the returned DataTable.

Column	Data type	Description
RequestorSpid	Int32	The system process ID value of the process that is holding a lock on a database resource.
LockType	String	The description of the type of lock. See the syslockinfo table for a description of different lock types.
Database	String	The name of the database on which the lock is held.
Table	String	The name of the table on which the lock is held. This field contains a value only if the lock is held on a table.
Index	String	The name of the index on which the lock is held. This field contains a value only if the lock is held on an index.
Status	Int32	The status of the lock, which can be one of the following: 1 = Granted. 2 = Converting. 3 = Waiting.

Notes

Texte mis à jour :17 juillet 2006

Cet espace de noms, cette classe ou ce membre est pris en charge uniquement par la version 2.0 de Microsoft .NET Framework.

Exemple

The example runs a Server object enumeration method, but extracting the information from the DataTable object is the same for Database enumeration methods.

'Connect to the local, default instance of SQL Server.
Dim srv As Server
srv = New Server
'Call the EnumCollations method and return collation information to DataTable variable.
Dim d As DataTable
'Select the returned data into an array of DataRow.
d = srv.EnumCollations
'Iterate through the rows and display collation details for the instance of SQL Server.
Dim r As DataRow
Dim c As DataColumn
For Each r In d.Rows
    Console.WriteLine("============================================")
    For Each c In r.Table.Columns
        Console.WriteLine(c.ColumnName + " = " + r(c).ToString)
    Next
Next

Sécurité des threads

Any public static (Shared in Microsoft Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Plateformes

Plateformes de développement

Pour obtenir la liste des plateformes prises en charge, consultez Configuration matérielle et logicielle requise pour l'installation de SQL Server 2005.

Plateformes cibles

Pour obtenir la liste des plateformes prises en charge, consultez Configuration matérielle et logicielle requise pour l'installation de SQL Server 2005.

Voir aussi

Référence

Database Class
Database Members
Microsoft.SqlServer.Management.Smo Namespace

Autres ressources

How to: Use an Enumeration Method that Returns a DataTable Object in Visual Basic .NET
How to: Create, Alter, and Remove a Database in Visual Basic .NET
sys.syslockinfo (Transact-SQL)
Creating, Altering, and Removing Databases
CREATE DATABASE (Transact-SQL)

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