From: Zlatko Matic <zlatko.matic1@sb.t-com.hr>
To: KeithW@NarrowPathInc.com
Cc: pgsql-general@postgresql.org
Cc: pgsql-interfaces@postgresql.org
Subject: Re: [INTERFACES] calculated identity field in views, again...
Date: Wed, 4 May 2005 10:58:34 +0200
Message-ID: <002e01c55087$74e44090$c5861dc3@zlatkovyfkpgz6> (raw)
References: <20050503151626.37630.qmail@web52405.mail.yahoo.com>
<4277EAEF.5030707@mailblocks.com>
<001201c5502c$1c030430$2d8b1dc3@zlatkovyfkpgz6>
<42784864.4060408@NarrowPathInc.com>
You mean VB.NET ?
----- Original Message -----
From: "Keith Worthington" <KeithW@NarrowPathInc.com>
To: "Zlatko Matic" <zlatko.matic1@sb.t-com.hr>
Cc: <pgsql-general@postgresql.org>; <pgsql-interfaces@postgresql.org>
Sent: Wednesday, May 04, 2005 5:58 AM
Subject: Re: [INTERFACES] calculated identity field in views, again...
> 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
>
> ---------------------------(end of broadcast)---------------------------
> TIP 2: you can get off all lists at once with the unregister command
> (send "unregister YourEmailAddressHere" to majordomo@postgresql.org)
>
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To: pgsql-interfaces@postgresql.org
Cc: zlatko.matic1@sb.t-com.hr, KeithW@NarrowPathInc.com, pgsql-general@postgresql.org
Subject: Re: [INTERFACES] calculated identity field in views, again...
In-Reply-To: <002e01c55087$74e44090$c5861dc3@zlatkovyfkpgz6>
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