Database.EnumCandidateKeys Method
Enumerates a list of all candidate primary keys in the database, which may be referenced by a foreign key.
Espace de noms: Microsoft.SqlServer.Management.Smo
Assembly: Microsoft.SqlServer.Smo (in microsoft.sqlserver.smo.dll)
Syntaxe
'Déclaration
Public Function EnumCandidateKeys As DataTable
public DataTable EnumCandidateKeys ()
public:
DataTable^ EnumCandidateKeys ()
public DataTable EnumCandidateKeys ()
public function EnumCandidateKeys () : DataTable
Valeur de retour
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 |
The name of the table that contains the candidate primary key. |
|
Name |
String |
The name of the candidate primary key. |
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 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
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
Creating, Altering, and Removing Foreign Keys
Creating, Altering, and Removing Databases
CREATE DATABASE (Transact-SQL)