Returns the primary key columns defined in the catalog by a given user.
(in System.Data.dll)
Visual Basic (Declaration)
Public Shared ReadOnly Primary_Keys As Guid
Dim value As Guid
value = OleDbSchemaGuid.Primary_Keys
public static readonly Guid Primary_Keys
public:
static initonly Guid Primary_Keys
public static final var Primary_Keys : Guid
Primary_Keys maps to the OLE DB PRIMARY_KEYS rowset. Unless otherwise specified, restriction columns are returned in the following order.
Restriction column | CLR data type | Description |
|---|
TABLE_CATALOG |
string
| Catalog name in which the table is defined. A null value if the provider does not support catalogs. |
TABLE_SCHEMA |
string
| Unqualified schema name in which the table is defined. A null value if the provider does not support schemas. |
TABLE_NAME |
string
| Table name. |
Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
.NET Framework
Supported in: 3.5, 3.0, 2.0, 1.1, 1.0
Reference