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Re: Finding records that are not there

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At 6:47 PM +0200 5/22/08, hubert depesz lubaczewski wrote:
On Thu, May 22, 2008 at 12:21:35PM -0400, Owen Hartnett wrote:
 The SQL I've tried is:
 select commcost.maplot, commcost.unitno from commcost
 where not exists(select 1 from commcost, bldg
 where commcost.maplot = bldg.maplot and
 commcost.unitno = bldg.unitno)
 order by commcost.maplot

change it to:

 select commcost.maplot, commcost.unitno from commcost
 where not exists(select 1 from bldg
 where commcost.maplot = bldg.maplot and
 commcost.unitno = bldg.unitno)
 order by commcost.maplot

or simply write:

select * from commcost except select * from bldg;

depesz

Thank you very much for your quick response!

-Owen


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