Nisam radio nesto puno sa ovim componentama ali mislim da bi trebalo da iskoristis property SQLBatch i Help :)
http://help.scibit.com/mysqlvcl/tmysqldataset_sqlcached.htm
Description
These are the statements the dataset intend to send to the mysql server with the next Close or Refresh of the dataset, if you enabled CachedUpdates, else the statements are send as the update occur, thus with each Post to your dataset of a record edit.
Napravi upit koji ce sa servera vratiti samo zeljeni slog nesto kao:
select [polje1, polje2, polje3,...,poljeN] | [*]
from tabela
where primarni_kljuc=:id_koji_editujes
Marcha
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Pretpostavka je majka zajeba.