通过

Database.EnumCandidateKeys Method

  • 项目

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

命名空间: Microsoft.SqlServer.Management.Smo
程序集: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)

语法

声明
Public Function EnumCandidateKeys As DataTable

public DataTable EnumCandidateKeys ()

public:
DataTable^ EnumCandidateKeys ()

public DataTable EnumCandidateKeys ()

public function EnumCandidateKeys () : DataTable

返回值

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.

备注

已更新的文本：2006 年 7 月 17 日

仅 Microsoft .NET Framework 的 2.0 版本支持此命名空间、类或成员。

示例

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

线程安全

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.

平台

开发平台

有关支持的平台列表，请参阅安装 SQL Server 2005 的硬件和软件要求。

目标平台

有关支持的平台列表，请参阅安装 SQL Server 2005 的硬件和软件要求。

请参阅

参考

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

其他资源

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)