Database.EnumCandidateKeys Method

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

Пространство имен: Microsoft.SqlServer.Management.Smo
Сборка: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

Синтаксис

'Декларация
Public Function EnumCandidateKeys As DataTable

public DataTable EnumCandidateKeys ()

public:
DataTable^ EnumCandidateKeys ()

public DataTable EnumCandidateKeys ()

public function EnumCandidateKeys () : DataTable

Возвращаемое значение

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.

Замечания

Изменения текста17 июля 2006 г.

Это пространство имен, класс или элемент поддерживаются только платформой Microsoft .NET Framework версии 2.0.

Пример

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

Синхронизация потоков

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.

Платформы

Платформы разработки

Список поддерживаемых платформ см. в разделе Hardware and Software Requirements for Installing SQL Server 2005.

Целевые платформы

Список поддерживаемых платформ см. в разделе Hardware and Software Requirements for Installing SQL Server 2005.

См. также

Справочник

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

Другие ресурсы

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)