• Articolo

Enumerazione DTSProviderSubType

Identifies a specific OLE DB provider. The enumeration value also identifies the data type format used by that provider when the ProviderType is OLE DB.

Spazio dei nomi:  Microsoft.SqlServer.Dts.Runtime
Assembly:  Microsoft.SqlServer.ManagedDTS (in Microsoft.SqlServer.ManagedDTS.dll)

Sintassi

'Dichiarazione
Public Enumeration DTSProviderSubType
'Utilizzo
Dim instance As DTSProviderSubType

public enum DTSProviderSubType

public enum class DTSProviderSubType

type DTSProviderSubType

public enum DTSProviderSubType

Membri

Nome membro Descrizione
DB2 The provider is Microsoft OLE DB Provider for DB2.
Oracle The provider is Microsoft OLE DB Provider for Oracle. This provider supports versions up to Oracle 8.
FlatFile The provider is a flat file.
DBase The provider is dBASE.
SqlServer The provider is Microsoft SQL Server Native Client OLE DB Provider.
Paradox The provider is Corel Paradox.
Excel The provider is the Microsoft OLE DB Provider for Microsoft Jet 4.0.
Access The provider is the Microsoft OLE DB Provider for Microsoft Jet 4.0.
None The provider is not specified using this enumeration.

Osservazioni

For more information about the OLE DB Providers, see Provider OLE DB testati con SQL Server.

Esempi

This enumeration is used by the DBProviderInfo class in the ProviderSubType property. The following example enumerates the properties of the database providers available on the computer, including the ProviderSubType which returns a value from this enumeration.

namespace dbproviderinfo
{
    class Program
    {
        static void Main(string[] args)
        {
            Application app = new Application();
            DBProviderInfos dbis = app.DBProviderInfos;
            foreach (DBProviderInfo dbi in dbis)
            {
                Console.WriteLine("Description = {0}, Name = {1}, ParseName = {2}", dbi.Description, dbi.Name, dbi.ParseName);
                Console.WriteLine("ProviderSubType ={0}, ProviderType = {1}", dbi.ProviderSubType, dbi.ProviderType);
                Console.WriteLine("SupportsNullColumns = {0}, UseFullTableName = {1}", dbi.SupportsNullColumns, dbi.UseFullTableName);
            }
        }
    }
}

Namespace dbproviderinfo
    Class Program
        Shared  Sub Main(ByVal args() As String)
            Dim app As Application =  New Application() 
            Dim dbis As DBProviderInfos =  app.DBProviderInfos 
            Dim dbi As DBProviderInfo
            For Each dbi In dbis
                Console.WriteLine("Description = {0}, Name = {1}, ParseName = {2}", dbi.Description, dbi.Name, dbi.ParseName)
                Console.WriteLine("ProviderSubType ={0}, ProviderType = {1}", dbi.ProviderSubType, dbi.ProviderType)
                Console.WriteLine("SupportsNullColumns = {0}, UseFullTableName = {1}", dbi.SupportsNullColumns, dbi.UseFullTableName)
            Next
        End Sub
    End Class
End Namespace

Sample output:

Description = MediaCatalogDB OLE DB Provider, Name = MediaCatalogDB OLE DB Provider, ParseName = {09E767A6-4481-4791-86A5-A739E5290E4C}

ProviderSubType =None, ProviderType = OleDb

SupportsNullColumns = True, UseFullTableName = True

Description = Microsoft OLE DB Provider for SQL Server, Name = SQLOLEDB, ParseName = {0C7FF16C-38E3-11d0-97AB-00C04FC2AD98}

ProviderSubType =SqlServer, ProviderType = OleDb

SupportsNullColumns = True, UseFullTableName = True