IDBCreateCommand::CreateCommand

Creates a new command.

Syntax

HRESULT CreateCommand(
   IUnknown     *pUnkOuter,
   REFIID        riid,
   IUnknown    **ppCommand);

pUnkOuter
[in] A pointer to the controlling IUnknown interface if the new command is being created as part of an aggregate. It is a null pointer if the command is not part of an aggregate.
riid
[in] The IID of the interface requested on the command.
ppCommand
[out] A pointer to memory in which to return the interface pointer on the newly created command.

S_OK
The method succeeded.
E_FAIL
A provider-specific error occurred.
E_INVALIDARG
ppCommand was a null pointer.
E_NOINTERFACE
The command did not support the interface specified in riid.
E_OUTOFMEMORY
The provider did not have enough memory to create the command.
E_UNEXPECTED
ITransaction::Commit or ITransaction::Abort was called, and the object is in a zombie state.
DB_E_NOAGGREGATION
pUnkOuter was not a null pointer, and the provider is an OLE DB 1.0 or 1.1 provider that does not support aggregation of the command object being created.

pUnkOuter was not a null pointer, and riid was not IID_IUnknown.
DB_E_OBJECTOPEN
The provider would have to open a new connection to support the operation, and DBPROP_MULTIPLECONNECTIONS is set to VARIANT_FALSE.

If the session is transacted, the command and any actions performed as a result of executing that command are within the scope of the transaction.