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Message-ID: <2bffcc3305083108497ea6dcc6@mail.gmail.com>
Date: Wed, 31 Aug 2005 11:49:44 -0400
From: Henry Ortega <juandelacruz@gmail.com>
To: pgsql-sql@postgresql.org
Subject: Re: insert only if conditions are met?
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What I am trying to do is
* Insert a record for EMPLOYEE A to TABLE A=20
IF
the sum of the hours worked by EMPLOYEE A on TABLE A
is not equal to N

Is this possible?




>=20
>=20
>=20
> On 8/31/05, Michael Fuhr <mike@fuhr.org> wrote:
> >=20
> > On Wed, Aug 31, 2005 at 11:09:54AM -0400, Henry Ortega wrote:
> > > Is there a way to insert a record only if a certain
> > > condition is met?
> > >
> > > Something like:
> > > insert into employee values('lastname','firstname',8) where=20
> > > (condition here.. select sum(ofsomething) from xx where=20
> > sum(ofsomething)>0 )
> >=20
> > See the INSERT documentation; it mentions inserting values from a=20
> > subquery.
> >=20
> > INSERT INTO employee
> > SELECT 'lastname', 'firstname', 8=20
> > WHERE <condition>;
> >=20
> > --
> > Michael Fuhr
> >=20
>=20
>

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<span class=3D"gmail_quote"></span>What I am trying to do is<br>
* Insert a record for EMPLOYEE A to TABLE A <br>
IF<br>
the sum of the hours worked by EMPLOYEE A on TABLE A<br>
is not equal to N<br>
<br>
Is this possible?<br>
<br>
<br>
<br>
<div><blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rgb(=
204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><span c=
lass=3D"e" id=3D"q_1060d39f13359fc9_1"><br>
<br>
<br><br><div><span class=3D"gmail_quote">On 8/31/05, <b class=3D"gmail_send=
ername">Michael Fuhr</b> &lt;<a href=3D"mailto:mike@fuhr.org" target=3D"_bl=
ank" onclick=3D"return top.js.OpenExtLink(window,event,this)">mike@fuhr.org=
</a>&gt; wrote:
</span><blockquote class=3D"gmail_quote" style=3D"border-left: 1px solid rg=
b(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On Wed, Aug 31, 2005 at 11:09:54AM -0400, Henry Ortega wrote:<br>&gt; Is th=
ere a way to insert a record only if a certain<br>&gt; condition is met?<br=
>&gt;<br>&gt; Something like:<br>&gt; insert into employee values('lastname=
','firstname',8) where
<br>&gt; (condition here.. select sum(ofsomething) from xx where sum(ofsome=
thing)&gt;0 )<br><br>See the INSERT documentation; it mentions inserting va=
lues from a subquery.<br><br>INSERT INTO employee<br>SELECT 'lastname', 'fi=
rstname', 8
<br>WHERE &lt;condition&gt;;<br><br>--<br>Michael Fuhr<br></blockquote></di=
v><br>

</span></div></blockquote></div><br>

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