You can create rules that simulate views and allow you to update the
database. I have not done this myself but have heard they work. Rules are
more complex that views. The html documentation has a lot of information
about rules. Views are implemented in Postgres using rules without the
update capabilities.
-----Original Message-----From: Chris Bitmead [SMTP:chris.bitmead@bigfoot.com]Sent: Friday, June 04, 1999 7:25
AMTo: pgsql-sql@postgreSQL.orgSubject: Re: [SQL] RV: A little problem updating data with
views
I don't believe views are updatable in postgresql.
Jorge Herrera Piñero wrote:> > Hello,> > We are using PostgreSQL v6.4 and have problems when we want
update> data throught views.> When we issue an update statment within a view, always obtain
'UPDATE 0'> and the data is not updated. We have checked write permissions
on view> and are right.> > Any ideas was going wrong?> > thanks in advance.> > A complete UPDATE test:> >
test=>create table ttest (t varchar(20), n int4);> test=> create view vtest as select t from ttest;> test=> insert into
ttestvalues('asd', 0);> test=> select * from vtest;> t> ---> asd> (1 row)> > test=> grant all on ttest, vtest to
postgres;>CHANGE> > test=> update vtest set t='asdasd';> UPDATE 0
-- Chris Bitmeadhttp://www.bigfoot.com/~chris.bitmeadmailto:chris.bitmead@bigfoot.com
