There's no set rule on that, Plinio. It would depend on a number of factors. There are times where SEEK works best and times where SELECT works best. If you are designing a solution that you might have to scale up to a server database, then consider using the SQL commands and views where possible to minimize problems migrating the data later.

>Shoud I replace the use of : SEEK,REPLACE,DELETE and use SELECT * FROm where, Update WHERE, and DELETE FOR
>
>It's a good artinative??
>What's the diferences?? (speed,integrity???)