how to get the effected row after execute a query

From: EazonGuo <eazonguo(at)gmail(dot)com>
To: pgsql-hackers(at)postgresql(dot)org
Subject: how to get the effected row after execute a query
Date: 2011-08-19 07:16:32
Message-ID: CACZa+5vVoqY+gA4R=WHoFqVS4HuJuA=OE==G_F=2ig0zbe5Pjg@mail.gmail.com
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Hello, I have a question. In SQL Server, we can use @@rowcount to get the
efftected row which record last query 's effected row .So I have a
question:
In Postgresql, how we can get the effected row? Is there some similar
functions to complete this?

--
Best regards

Eazon

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