logo       

Re: calculated identity field in views, again...: msg#00002

Subject: Re: 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@xxxxxxxxxxxxxx)



<Prev in Thread] Current Thread [Next in Thread>
Google Custom Search

Recently Viewed:
science.linguis...    culture.sf.lite...    video.mplayer.c...    yellowdog.gener...    ietf.rfc822/199...    emacs.help/2002...    redhat.release....    kernel.speakup/...    java.openejb.de...    debian.devel.gt...    xfree86.newbie/...    bug-tracking.ma...    pam/2003-05/msg...    games.devel.ope...    user-groups.lin...    music.pancham/2...    network.mq.deve...    web.html.genera...    arklinux.bugs/2...    linux.ecasound/...    qnx.openqnx.dev...    org.user-groups...    file-systems.sf...    trustix.contrib...   
Home | blog view | USPTO Patent Archive | advertise | OSDir is an inevitable website. super tiny logo

Free Magazines

Cisco News
Receive a free quarterly e-newsletter with exclusive articles on how Cisco IT uses its own products and solutions to enable the business.
subscribe

Systems Management News, the newspaper for IT systems administration and data center managers! Each issue of Systems Management News is chock-full of news and analysis to help you understand what's happening in your field.
subscribe

The Enterprise Newsweekly eWeek is the essential technology information source for builders of e-business.
subscribe

Oracle Magazine Oracle Magazine contains technology strategy articles, sample code, tips, Oracle and partner news, how to articles for developers and DBAs, and more. Oracle (NASDAQ: ORCL) is the world's largest enterprise software company.
subscribe

Total Telecom Total Telecom is "The Economist of the communications industry".
subscribe