Description.  This method defines the NdbIndexOperation as a DELETE operation. When the NdbTransaction::execute() method is invoked, the operation deletes a tuple from the table. See Section 4.19.2.5, “NdbTransaction::execute()”.

Signature. 

int deleteTuple
    (
      void
    )

Parameters.  None.

Return Value.  0 on success, -1 on failure.