ibec_ds_Bof

Indicates whether or not a cursor is positioned at the first record in a dataset.

Call ibec_ds_Bof to determine if the cursor is positioned at the first record in a dataset. If bec_ds_Bof returns True, the cursor is unequivocally on the first row in the dataset. Otherwise this function returns False.

  function ibec_ds_Bof(Dataset : variant) : Boolean;
  

execute ibeblock
as
begin
  select * from RDB$FIELDS as dataset MyDataset;

  ibec_ds_Last(MyDataset);
  while (not ibec_ds_Bof(MyDataset)) do
  begin
    ...
    ibec_ds_Prior(MyDataset);
  end

  ...

  close dataset MyDataset;
end