Subject Re: error when add computed
Author ronaldorezende
> SELECT COUNT(*) might be okay with Desktop-databases, maybe even
with
> Oracle or MSSQL, but it should be used rarely (if at all) with
IB/FB due
> to the multiple generation architecture -
> count (*) is not written somewhere in a header of a table - it has
to be
> evaluated every time you call it and this means that the table has
to be
> scanned totally (which makes it quite slow).


I don't know why not use the count in my table. I dont use
the "select *". I only use the computed by column when it's really
necessary.