From: Stephan Szabo <sszabo@megazone.bigpanda.com>
To: Abdul Wahab Dahalan <wahab@mimos.my>
Cc: Christoph Haller <ch@rodos.fzk.de>
Cc: pgsql-sql@postgresql.org
Subject: Re: How to speeed up the query performance
Date: Wed, 13 Aug 2003 20:12:24 -0700 (PDT)
Message-ID: <20030813201031.D67777-100000@megazone.bigpanda.com> (raw)
In-Reply-To: <3F3AF940.9000002@mimos.my>
On Thu, 14 Aug 2003, Abdul Wahab Dahalan wrote:
> Hai Chris!
> Thanks for the solution but seem it doesnt work.
> (0 rows) returned when I used NOT EXITS but (4 rows) returned
> when NOT IN is used...................
Maybe you need a set of parenthesis around the old conditions
because of the or.
> >Try:
> >select
> >ts.transportid,ts.transporttype,ts.transportcapacity,ts.transportstatus,ts.routecoverage,ts.transportregnumber
> >
> >from transportsetup ts
> >where ts.bizid = 'B126'
> >and ts.deletestatus = 0
> >and NOT EXISTS ( select t.transportid
> > from transportsetup t,servicedetail s,logisticservice l
> > where ts.transportid = t.transportid
> > and t.bizid=l.bizid
Replace the above with:
and (t.bizid=l.bizid
> > and l.serviceid=s.serviceid
> > and t.transportid=s.transportid
> > and t.bizid = 'B126'
> > and l.status='Pending'
> > or t.bizid=l.bizid
> > and l.serviceid=s.serviceid
> > and t.transportid=s.transportid
> > and t.bizid = 'B126' and l.status='Reserved' )
Add:
)
> >order by ts.transporttype;
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To: pgsql-sql@postgresql.org
Cc: sszabo@megazone.bigpanda.com, wahab@mimos.my, ch@rodos.fzk.de
Subject: Re: How to speeed up the query performance
In-Reply-To: <20030813201031.D67777-100000@megazone.bigpanda.com>
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