On Wed, Dec 15, 2010 at 11:23 AM, venkat <ven.tammin...@gmail.com> wrote:

> Dear All,
>
>   How do i convert string to int
>
> select SUM(pan_1) from customers1 where name='101'
>
> When i run the above query i m getting  "function sum(character varying)
> does not exist"..
>
> Please anyone can guide me..
>
> Thanks
>
>
>
select SUM(pan_1::integer) from customers1 where name='101'

also you can use conversion functions described here
http://www.postgresql.org/docs/8.2/static/functions-formatting.html

-- 
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Viktor Bojović
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Wherever I go, Murphy goes with me

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