From: Keith Worthington <KeithW@NarrowPathInc.com>
To: Zlatko Matic <zlatko.matic1@sb.t-com.hr>
Cc: pgsql-general@postgresql.org
Cc: pgsql-interfaces@postgresql.org
Subject: Re: [INTERFACES] calculated identity field in views, again...
Date: Tue, 03 May 2005 23:58:28 -0400
Message-ID: <42784864.4060408@NarrowPathInc.com> (raw)
In-Reply-To: <001201c5502c$1c030430$2d8b1dc3@zlatkovyfkpgz6>
References: <20050503151626.37630.qmail@web52405.mail.yahoo.com>
<4277EAEF.5030707@mailblocks.com>
<001201c5502c$1c030430$2d8b1dc3@zlatkovyfkpgz6>
Zlatko Matic wrote:
> I asked this question several weeks ago, but nobody proposed a solution,
> so I am repeating the same question again...
> I have an MS Access front-end for a database on PostgreSQL.
> I could use pass-through queries as record sources for reports and it
> works fine...
> Unfortunately, MS Access doesn't allow pass-through queries to be
> records sources for subforms.
> Therefore I tried to base subforms on regular JET queries on linked
> tables. It was too slow...
> Then I tried to base subforms on DAO recordset code generated from
> pass-through QueryDef objects. Although it worked, it was very unstable...
>
> Now it seems to me that POstgreSQL views are the best solution, but
> Access considers views as tables (!) and needs column with unique values.
> All those views are complicated queries on several tables, so I can't
> use any table's column as primary key. I need a calculated column in the
> view that Access will consider as primary key column.
> In regular tables, I use bigserial field, but how can I create
> calculated bigserial column in a view ?
>
> Thanks.
>
> ---------------------------(end of broadcast)---------------------------
> TIP 9: the planner will ignore your desire to choose an index scan if your
> joining column's datatypes do not match
>
>
Another option is to toss the MS Access altogether and program the front
end entirely in VB. That is what we did.
--
Kind Regards,
Keith
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: pgsql-interfaces@postgresql.org
Cc: KeithW@NarrowPathInc.com, zlatko.matic1@sb.t-com.hr, pgsql-general@postgresql.org
Subject: Re: [INTERFACES] calculated identity field in views, again...
In-Reply-To: <42784864.4060408@NarrowPathInc.com>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by DDX for PostgreSQL; see mirroring instructions
for how to clone and mirror all data and code used for this inbox