At 07:38 PM 1/01/2003 +0100, you wrote:

>In my Application I noticed that the generator value of one table increased
>without ever inserting new rows. When trying to find the portion of the code
>responsible for that, I found that whenever the app. connects to the
>database and steps through the querys to activate them, it also sends this
>to the server:
>
>SELECT GEN_ID ( GEN_TABBESTELL, 1 )
>FROM RDB$DATABASE
>PLAN (RDB$DATABASE NATURAL)
>
>The generator GEN_TABBESTELL is defined as Generator_Link of one TIB_Query
>and nowhere else.
>The odd thing is, that this command is send to the server long after that
>particular query has been prepared and opened.
>
>Is there any property of the query which can possibly cause this?

This will be caused if the TABBESTELL query has RequestLive true, has an
empty dataset and you open it in edit mode. The behaviour under these
conditions is to open a new row for inserting, thus prompting the gen_id
call. Stepping up the generator, without storing any data that use the
value, is not (or ought not to be) a problem. You should review your
program flow, however, and only call DML methods on queries when the DML
operation is actually needed.

Helen