Database.EnumCandidateKeys Method

Artikel
12/15/2008

Enumerates a list of all candidate primary keys in the database, which may be referenced by a foreign key.

Namespace: Microsoft.SqlServer.Management.Smo
Assembly : Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

Syntax

'Declaration
Public Function EnumCandidateKeys As DataTable

public DataTable EnumCandidateKeys ()

public:
DataTable^ EnumCandidateKeys ()

public DataTable EnumCandidateKeys ()

public function EnumCandidateKeys () : DataTable

Rückgabewert

A DataTable system object value that contains an enumerated list of candidate keys. The table describes the different columns of the returned DataTable.

Column	Data type	Description
Table_Name	String	The name of the table that contains the candidate primary key.
Name	String	The name of the candidate primary key.

Hinweise

Aktualisierter Text:17. Juli 2006

Der Namespace, die Klasse oder das Element wird nur in der Version 2.0 von Microsoft .NET Framework unterstützt.

Beispiel

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

Threadsicherheit

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.

Plattformen

Entwicklungsplattformen

Eine Liste der unterstützten Plattformen finden Sie unterHardware- und Softwareanforderungen für die Installation von SQL Server 2005.

Zielplattforme

Eine Liste der unterstützten Plattformen finden Sie unterHardware- und Softwareanforderungen für die Installation von SQL Server 2005.

Siehe auch

Verweis

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

Andere Ressourcen

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
Creating, Altering, and Removing Foreign Keys
Creating, Altering, and Removing Databases
CREATE DATABASE (Transact-SQL)

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