| Lists: | pgsql-jdbc |
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| From: | "Guy Rouillier" <guyr(at)masergy(dot)com> |
|---|---|
| To: | <pgsql-jdbc(at)postgresql(dot)org> |
| Subject: | Re: Fields |
| Date: | 2006-05-31 20:51:39 |
| Message-ID: | D4D1632DC736E74AB95FE78CD60900790126AC@mtxexch01.add0.masergy.com |
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| Lists: | pgsql-jdbc |
Charles Curi wrote:
> Hi people!!!
> I have a table called "orders" with fields "a","b" and "c".
> I want to make a INSERT only of fields "a" and "b" by Java and at
> this moment c=a*b; Is it possible?
I think you are saying you want your Java code to insert fields "a" and
"b" and have "c" automatically set to a value derived from "a" and "b".
If so, you can accomplish this with an insert trigger.
--
Guy Rouillier
| From: | Mark Lewis <mark(dot)lewis(at)mir3(dot)com> |
|---|---|
| To: | Guy Rouillier <guyr(at)masergy(dot)com> |
| Cc: | pgsql-jdbc(at)postgresql(dot)org |
| Subject: | Re: Fields |
| Date: | 2006-05-31 20:56:13 |
| Message-ID: | 1149108973.20798.3.camel@archimedes |
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| Lists: | pgsql-jdbc |
On Wed, 2006-05-31 at 15:51 -0500, Guy Rouillier wrote:
> Charles Curi wrote:
> > Hi people!!!
> > I have a table called "orders" with fields "a","b" and "c".
> > I want to make a INSERT only of fields "a" and "b" by Java and at
> > this moment c=a*b; Is it possible?
>
> I think you are saying you want your Java code to insert fields "a" and
> "b" and have "c" automatically set to a value derived from "a" and "b".
> If so, you can accomplish this with an insert trigger.
>
Or you could just insert a, b and a*b yourself . . . . or am I missing
something here?
-- Mark
| From: | "EBIHARA, Yuichiro" <ebihara(at)iplocks(dot)co(dot)jp> |
|---|---|
| To: | <pgsql-jdbc(at)postgresql(dot)org> |
| Subject: | Re: Fields |
| Date: | 2006-06-01 01:14:22 |
| Message-ID: | 001901c68518$b7cd6b40$360aa8c0@ipljp.local |
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| Lists: | pgsql-jdbc |
Hi,
Another solution may be a view as follows.
create table orders (a int, b int);
create view orders_v as select a, b, a * b as c from orders;
ebi
> -----Original Message-----
> From: pgsql-jdbc-owner(at)postgresql(dot)org
> [mailto:pgsql-jdbc-owner(at)postgresql(dot)org] On Behalf Of Mark Lewis
> Sent: Thursday, June 01, 2006 5:56 AM
> To: Guy Rouillier
> Cc: pgsql-jdbc(at)postgresql(dot)org
> Subject: Re: [JDBC] Fields
>
>
> On Wed, 2006-05-31 at 15:51 -0500, Guy Rouillier wrote:
> > Charles Curi wrote:
> > > Hi people!!!
> > > I have a table called "orders" with fields "a","b" and
> "c". I want
> > > to make a INSERT only of fields "a" and "b" by Java and at this
> > > moment c=a*b; Is it possible?
> >
> > I think you are saying you want your Java code to insert fields "a"
> > and "b" and have "c" automatically set to a value derived
> from "a" and
> > "b". If so, you can accomplish this with an insert trigger.
> >
>
> Or you could just insert a, b and a*b yourself . . . . or am
> I missing something here?
>
> -- Mark
>
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