From: | Henry Drexler <alonup8tb(at)gmail(dot)com> |
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To: | pgsql-novice(at)postgresql(dot)org |
Subject: | opposite of chr(int) |
Date: | 2011-10-06 19:42:31 |
Message-ID: | CAAtgU9RKaT9WQhhZAcMoqJG0rxL-gudB=CwUUOnxORmwuWub=w@mail.gmail.com |
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Lists: | pgsql-novice |
Looking at the string functions on:
http://www.postgresql.org/docs/9.0/static/functions-string.html
I only see chr(int) and not something like int(chr).
reading through the others on that page i do not see a int(chr)
the goal is to tell whether or not a character in a string is an integer or
not
my current workaround is this:
select
case
when substring('wallawa9kl',8,1) = '0' then 'true'
when substring('wallawa9kl',8,1) = '1' then 'true'
when substring('wallawa9kl',8,1) = '2' then 'true'
when substring('wallawa9kl',8,1) = '3' then 'true'
when substring('wallawa9kl',8,1) = '4' then 'true'
when substring('wallawa9kl',8,1) = '5' then 'true'
when substring('wallawa9kl',8,1) = '6' then 'true'
when substring('wallawa9kl',8,1) = '7' then 'true'
when substring('wallawa9kl',8,1) = '8' then 'true'
when substring('wallawa9kl',8,1) = '9' then 'true'
else 'false'
end
just wondering if there is something more compact or if this is an okay
workaround solution.
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