From: Halley Pacheco de Oliveira <halleypo@yahoo.com.br>
To: pgsql-sql@postgresql.org
Cc: tv@fuzzy.cz
Subject: Re: converting varchar to integer
Date: Wed, 17 Aug 2005 07:46:05 -0300 (ART)
Message-ID: <20050817104605.76269.qmail@web52703.mail.yahoo.com> (raw)
Using CASE to avoid '':
CREATE TABLE test (number TEXT);
INSERT INTO test VALUES('123');
INSERT INTO test VALUES('a123b');
INSERT INTO test VALUES('');
teste=> SELECT CASE number WHEN '' THEN NULL ELSE to_number(number,'999999999999990') END AS
number FROM test;;
number
--------
123
123
(3 lines)
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To: pgsql-sql@postgresql.org
Cc: halleypo@yahoo.com.br, tv@fuzzy.cz
Subject: Re: converting varchar to integer
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