EnumCandidateKeys méthode
Enumerates a list of all candidate primary keys in the database, which can be referenced by a foreign key.
Espace de noms : Microsoft.SqlServer.Management.Smo
Assembly : Microsoft.SqlServer.Smo (dans Microsoft.SqlServer.Smo.dll)
Syntaxe
'Déclaration
Public Function EnumCandidateKeys As DataTable
'Utilisation
Dim instance As Database
Dim returnValue As DataTable
returnValue = instance.EnumCandidateKeys()
public DataTable EnumCandidateKeys()
public:
DataTable^ EnumCandidateKeys()
member EnumCandidateKeys : unit -> DataTable
public function EnumCandidateKeys() : DataTable
Valeur de retour
Type : System.Data. . :: . .DataTable
A DataTable system object value that contains an enumerated list of candidate keys. The table describes the different columns of the returned DataTable.
Exemples
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
Voir aussi