Hi, I've been testing Delphi 2005 with Postgresql 7.4.5, through ZEOS Lib 6.5.1, and I have a question:
How do you implement an optimistic locking strategy with these tools? With an Access front-end, and the ODBC driver, this is completely transparent. A test showed me that the Delphi client writes to the database without worrying about another user doing that meanwhile... I saw it's possible to manipulate the isolation level (read commited or serializable only) in the ZEOS controls, but it does not help at all here. An optimistic lock is a kind of "long transaction" for me. Thanks for your time! Philippe -----Message d'origine----- De : [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] De la part de Arthur Hoogervorst Envoyé : lundi, 9. mai 2005 12:46 À : pgsql-general@postgresql.org Objet : Re: [GENERAL] Adventures in Quest for GUI RAD Hi, The company I work for actually uses the Zeos lib/Postgres extensively to track the shipping and sales side for almost 3 years. We're still running on a 7.2/7.4 Postgres database, because I haven't been convinced yet to either update or upgrade to 8.x.x. I'm curious if others have successfully moved their (production) database successfully to Postgres 8.0. Regards, Arthur On 5/9/05, Philippe Lang <[EMAIL PROTECTED]> wrote: > Hi, > > I'm testing Delphi 2005 at the moment, with ZEOS Lib (libpq), and I have to > say it work fine, as Tony mentioned. I have a few questions: > > 1) I'm curious: are there a lot of big projects using ZEOS with PG or is that > technology still relatively new? I would like to use it a replacement for > ODBC, but I have no experience regarding its stability. > ---------------------------(end of broadcast)--------------------------- TIP 6: Have you searched our list archives? http://archives.postgresql.org ---------------------------(end of broadcast)--------------------------- TIP 5: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
