Hello Helen

Yes, with "an external program" I means a program written by me.

Excellent answer, that is what I need.

Thank you very much.

Walter.

On Fri, Apr 1, 2011 at 12:57 AM, Helen Borrie <helebor@...> wrote:

>
>
> At 03:45 PM 1/04/2011, you wrote:
> >Hello everybody
> >
> >Is it possible for an external program know which are the tables of a
> >Database?
>
> An external program means a client program written by you? You can always
> query the system tables:
> rdb$relations where rdb$view_source is null gives you the tables (omit the
> where clause to get the views as well). The column rdb$relation.name gives
> you the name of the table.
>
>
> >And which are the columns of a table?
>
> rdb$relation_fields gets the column names and a bit of data about each
> column
> rdb$fields gives you the nuts and bolts for each domain definition. (The
> engine creates a dedicated domain for each column definition that does not
> specify a domain as its type.) To match up the column name from the table
> (relation) join the system column rdb$field_source to
> rdb$fields.rdb$field_name.
>
> The free IB_SQL utility (from www.ibobjects.com) lets you check a box in
> its database browser to optionally display the system tables and everything
> about them. If you are literate in Delphi, you can also get the sources for
> this toolset in the trial download, in case you want to search for the SQL
> for those queries it does to display that info. Even if you're not, there's
> more than enough stuff in the browser tabs for you to see how it extracts
> the info.
>
> ./heLen
>
>
>


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