Re: Postgresql to Delphi
От | Tony Caduto |
---|---|
Тема | Re: Postgresql to Delphi |
Дата | |
Msg-id | 46005B21.70808@amsoftwaredesign.com обсуждение исходный текст |
Ответ на | Re: Postgresql to Delphi (Bob Pawley <rjpawley@shaw.ca>) |
Список | pgsql-general |
Bob Pawley wrote: > Listen/notify implies a dynamic table that is constantly on the > change. Am I correct? > > The table I am talking about is completed through one interface then > imported as a relatively static information base for the application > in which I am seeking help. > Yes, you would have to define a rule on the table and when the table changed it would send a notification back to who ever is listening. Why don't you just run a query against the table, then loop through the result set and then trigger your devices from inside the loop? myquery.sql.add('select * from mytable where bla = bla;'); myquery.open; While not myquery.eof do begin if myquery.fieldbyname('somefield').asstring = 'something' then //signal your device. myquery.next; end; I guess that is the best I can come up without knowing more. Later, -- Tony Caduto AM Software Design http://www.amsoftwaredesign.com Home of PG Lightning Admin for Postgresql Your best bet for Postgresql Administration
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