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Database.EnumCandidateKeys Method

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

Espacio de nombres: Microsoft.SqlServer.Management.Smo
Ensamblado: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

Sintaxis

'Declaración
Public Function EnumCandidateKeys As DataTable
public DataTable EnumCandidateKeys ()
public:
DataTable^ EnumCandidateKeys ()
public DataTable EnumCandidateKeys ()
public function EnumCandidateKeys () : DataTable

Valor devuelto

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.

Notas

Texto actualizado:17 de julio de 2006

Este espacio de nombres, clase o miembro solamente se admite en la versión 2.0 de Microsoft .NET Framework.

Ejemplo

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

Seguridad para subprocesos

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.

Plataformas

Plataformas de desarrollo

Para obtener una lista de las plataformas compatibles, vea Requisitos de hardware y software para instalar SQL Server 2005.

Plataformas de destino

Para obtener una lista de las plataformas compatibles, vea Requisitos de hardware y software para instalar SQL Server 2005.

Vea también

Referencia

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

Otros recursos

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)