anyone know of a good book or books on database modeling?
like for entity relationship diagrams and such..
thanks!
Hi!
Thanks all for your input...
At 09:15 17.08.00 -0700, you wrote:
[...]
> > Question: would it work to use a transaction to perform the rename?
> >
> > i.e.: continuous insert into table 'main' from client.
> >
> > From somewhere else, execute:
> >
> > begin;
> > alter table main rename to v
hi!
At 11:38 17.08.00 -0700, you wrote:
>Hi All.
>
>Shouldn't Postgres block while vacuuming, and then
>continue inserting starting where it left off? Is the
>time lag too much?
For me - yes. My app can accept some hundredes of ms time lag - not
seconds or, like with a VACUUM, minutes (I've see
I'm not familiar with rules. Could you please post the SQL for creating the rule
that you've created?
I going to make such a setup in the near future and this seems to .
Joerg Hessdoerfer wrote:
> Hi!
>
> Thanks all for your input...
>
> At 09:15 17.08.00 -0700, you wrote:
> [...]
> > > Questio
Hi!
At 11:57 18.08.00 +0100, you wrote:
>I'm not familiar with rules. Could you please post the SQL for creating
>the rule
>that you've created?
Here we go (if memory serves ;-)
create table a ( num int4, name text );
create table b ( num int4, name text );
rule to insert into b instead of a:
I am having problems referencing sequeces in a function, I think because of
the '' characters. The function I am creating is a follows: -
CREATE FUNCTION InsertClient ( varchar, varchar, varchar, varchar, varchar,
varchar ) RETURNS int4 AS '
DECLARE
id INT;
BEGIN
SELECT nextval('c
Hello Graham,
Friday, August 18, 2000, 6:24:15 PM, you wrote:
GV> I am having problems referencing sequeces in a function, I think because of
GV> the '' characters. The function I am creating is a follows: -
GV> CREATE FUNCTION InsertClient ( varchar, varchar, varchar, varchar, varchar,
GV> var
Hi
I'm trying to make a field in my table (datechanged) to automatically be
updated with the value 'now()' when an update on the table occurs.
plc=# create rule datechanged_radius AS ON update to radius do update
radius set datechanged ='now()';
CREATE 22025360 1
plc=# update radius set destinat
On Fri, 18 Aug 2000, Joerg Hessdoerfer wrote:
> Good idea - I immediately tested it - rules rule! That seems to work perfectly,
> and the client doesn't even see it happen (except for 'selects', one would
> have to setup
> a rule to return something meaningful then...).
>
> I did:
> Two tables,
On Fri, 18 Aug 2000, Poul L. Christiansen wrote:
> Hi
>
> I'm trying to make a field in my table (datechanged) to automatically be
> updated with the value 'now()' when an update on the table occurs.
>
> plc=# create rule datechanged_radius AS ON update to radius do update
> radius set datecha
I have noticed that you can only pass 16 parameters to a function, I was
therefore wondering how you can do atomic inserts (such as the function
below but with more params) using pl/pgsql if you can't pass complex data
types. Is this something that transactions are not used for or is it best
done
Is it possible to have a sequence (or something like it) when it increments
alpha-numeric?
Say the first value is set at A01 and it will increment to A02, A03 by
default. Also, it would be good if it could be made the primary key.
Adam Lang
Systems Engineer
Rutgers Casualty Insurance Company
Greetings pg world,
I have been asked to look into making a relatively simple db app. in which the
tuple size will quite probably grow to more than the 32kbytes limit offered by
recompiling.
I understand that the 7.1 release currently in CVS does not have this
limitation. So I'd like to know if
You can create a running total provided that you have a unique
sequentially increasing (or decreasing) ID for each row. See the
following example:
create table tran(id int primary key, price dec(8,2));
insert into tran values(1,5.00);
insert into tran values(2,4.00);
insert into tran values(3,10
> This solution isn't good when there are +1 tuples in the table, it's
> slowly... anybody can help me ? :
Someone already responded, and asked some questions about what you are
really trying to do. If you didn't get the message, let us know or check
the mail archives.
Regards.
This solution isn't good when there are +1 tuples in the table, it's
slowly...
anybody can help me ? :
string = "SELECT service, noeud, rubrique FROM table" ;
res = PQexec( conn, string.data() ) ;
if ( (! res) || (status = PQresultStatus( res ) !=
PGRES_TUPLES_OK)
16 matches
Mail list logo
