Revisando la
documentacion:
Cita:
FireDAC is fetching rowsets according to the FetchOptions.Mode property:
fmOnDemand--the rowset is automatically fetched when the dataset is trying to move the current position beyond the last fetched record.
fmAll--all the rowsets are automatically fetched right after executing the SQL command. This is similar to calling the FetchAll method.
fmManual--the programmer manually fetches the rowsets using the FetchNext or FetchAll methods.
fmExactRecsMax--all rowsets are automatically fetched right after executing the SQL command. If the number of rows is different from FetchOptions.RecsMax, an exception is raised.
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Otra opcion es llamar al metodo
FetchAll